Paint booth fault codes
Every paint booth fault code, in plain words
963 paint booth fault codes from 46 burner controls, drives, gas detectors, temperature controllers and booth panels, each with what it means in plain words and how risky it is. The fix for every code is in WERCS Diagnose.
Get the fixes · plans from $49/moUpdated November 4, 2026
No code matches that. Try the code exactly as the panel shows it, or call (877) 489-3727.
Jump to a controller (46)
ABB ACS355 VFD 14ABB ACS580 VFD 191Allen-Bradley PowerFlex 4M VFD 15Allen-Bradley PowerFlex 525 VFD 16Danfoss VLT HVAC Drive FC 102 73Siemens SINAMICS V20 VFD 54Yaskawa GA500 AC Drive 141Yaskawa V1000 VFD 15Brahma SR / VE / AT / BV / GV Electromechanical Flame Control 1Dungs VPS 504 Valve Proving System 2Fenwal 35-60 / 35-61 Direct Spark Ignition 4Fireye MicroM Burner Control 7Fireye MicroM Flame Safeguard (MC-5000) 18Fireye YB110 Burner Management System 7Honeywell 7800 Series Burner Control (RM7800 / RM7840) 8Honeywell S8610U Intermittent Pilot Ignition 11Honeywell S89 / S8600 Direct Spark Ignition Module 2Kromschroder BCU 46x / 480 Burner Control Unit 21Kromschroder IFD 244 / IFD 258 Automatic Burner Control 12Kromschroder PFU 780 / PFU 760 Burner Control Unit 15Nu-Way XGN 450-3000 MBC Microprocessor Burner Control 16Riello RDB 2.2 Burner Control (MO 535 - MPF) 9Riello RDB 3.2 BT 50/70 Burner Control 11Riello RS/E BLU Burner Control (REC 27.100A2 with RDI21 display) 24Satronic / Honeywell DKG 972 Gas Burner Control 5Satronic / Honeywell DKO 970/972 Oil Burner Control 5Satronic / Honeywell MMI 810.1 / 811.1 Gas Burner Safety Control 1Satronic / Honeywell TFI 812 Gas Burner Control Box 1Siemens LME2x / Ecoflam E-BCU Gas Burner Control 7Siemens LME7 Series Burner Control 11Siemens LMG Gas Burner Control (Bentone STG) 8Siemens LMO14/24 Oil Burner Control 5Weishaupt W-FM 200 Combustion Manager 16White-Rodgers 50E47-843 Hot Surface Ignition 7Honeywell Sensepoint XCD Gas Detector 20Industrial Scientific Radius BZ1 Area Monitor 15MSA ULTIMA X5000 Gas Monitor 39RKI Eagle / Eagle 2 Multi-Gas Detector 9FutureDesign MCT4 Multi-Loop Controller / HMI 8Honeywell UDC2500 Digital Controller 10Omron E5CC Temperature Controller 3Partlow MIC 2000 Temperature Controller 6Watlow EZ-ZONE Temperature Controller 9Watlow F4T Controller 19Garmat USA booth panel 4Global Finishing Solutions booth panel 68
Drives (VFDs)
ABB ACS355 VFD · 14 codes
| Code | What it means | Risk |
|---|---|---|
| 0001 | 0001 OVERCURRENT The drive stopped the motor because the output current exceeded the maximum trip limit. | YELLOW |
| 0002 | 0002 DC OVERVOLT The drive shut down because its internal DC circuit voltage exceeded the maximum safe limit. | YELLOW |
| 0003 | 0003 DEV OVERTEMP The drive stopped because its internal power components exceeded the maximum safe operating temperature. | YELLOW |
| 0004 | 0004 SHORT CIRC The drive stopped because it detected a short circuit in the motor or the motor cables. | RED |
| 0006 | 0006 DC UNDERVOLT The drive stopped because its internal DC voltage dropped too low to operate the motor. | YELLOW |
| 0007 | 0007 AI1 LOSS The drive stopped because the first analog input signal fell below its programmed minimum limit. | YELLOW |
| 0008 | 0008 AI2 LOSS The drive stopped because the second analog input signal fell below its programmed minimum limit. | YELLOW |
| 0009 | 0009 MOT OVERTEMP The drive stopped the equipment because the motor temperature exceeded its programmed fault limit. | YELLOW |
| 0012 | 0012 MOTOR STALL The drive stopped because the motor stalled from an excessive load or insufficient power. | YELLOW |
| 0016 | 0016 EARTH FAULT The drive stopped the motor because it detected a ground fault in the motor or cables. | RED |
| 0022 | 0022 SUPPLY PHASE The drive stopped because it detected a missing input power phase causing excessive voltage ripple. | YELLOW |
| 0028 | 0028 SERIAL 1 ERR The drive stopped because the fieldbus communication connection to the control system was broken. | YELLOW |
| 0034 | 0034 MOTOR PHASE The drive stopped because it detected a missing motor power phase or a faulty thermistor relay. | YELLOW |
| 0037 | 0037 CB OVERTEMP The drive shut down because its internal control board exceeded the maximum safe operating temperature. | YELLOW |
ABB ACS580 VFD · 191 codes
| Code | What it means | Risk |
|---|---|---|
| 1080 | Backup/Restore timeout The control panel or PC tool failed to communicate during a backup or restore, stopping the process. | YELLOW |
| 1081 | Rating ID fault The drive software cannot read the rating ID, which causes the drive to fault and stop. | YELLOW |
| 2281 | Calibration The measured offset of the output phase current is too great, causing the drive to stop. | YELLOW |
| 2310 | Overcurrent The output current has exceeded the internal fault limit, which causes the drive to stop operating. | RED |
| 2330 | Earth leakage The drive has detected a load unbalance from an earth fault, causing it to stop the motor. | RED |
| 2340 | Short circuit A short circuit has occurred in the motor or its cables, causing the drive to stop immediately. | RED |
| 2381 | IGBT overload The internal temperature is excessive due to an overload, which causes the drive to stop for protection. | RED |
| 3130 | Input phase loss The internal DC voltage is oscillating due to a missing input phase, causing the drive to stop. | YELLOW |
| 3181 | Wiring or earth fault The input power and motor cables are connected incorrectly, which prevents the drive from operating safely. | RED |
| 3210 | DC link overvoltage The intermediate circuit DC voltage is excessive, which causes the drive to stop to protect itself. | RED |
| 3220 | DC link undervoltage The intermediate circuit DC voltage is too low, which causes the drive to stop operating. | YELLOW |
| 3381 | Output phase loss A motor circuit fault has occurred because the output phases are disconnected, stopping the drive. | YELLOW |
| 4110 | Control board temperature The control unit temperature is too high, which causes the drive to stop working. | RED |
| 4210 | IGBT overtemperature The estimated drive IGBT temperature is excessive, causing the drive to shut down. | RED |
| 4290 | Cooling The drive module temperature is excessive, which forces the drive to stop operating. | RED |
| 42F1 | IGBT temperature The drive IGBT temperature is excessive, which causes the drive to stop running. | RED |
| 4310 | Excess temperature The power unit module temperature is excessive, causing the drive to shut down. | RED |
| 4380 | Excess temperature difference A high temperature difference exists between the IGBTs of different phases, stopping the drive. | RED |
| 4981 | External temperature 1 The first measured external temperature has exceeded its fault limit, stopping the drive. | RED |
| 4982 | External temperature 2 The second measured external temperature has exceeded its fault limit, stopping the drive. | RED |
| 4990 | CPTC-02 not found The extension module is not detected in the second option slot, stopping the drive. | YELLOW |
| 4991 | Safe motor temperature The extension module indicates a high motor temperature or disconnected thermistor, stopping the drive. | RED |
| 5080 | Fan The cooling fan feedback is missing on larger frames, causing the drive to stop. | YELLOW |
| 5081 | Auxiliary fan broken An auxiliary cooling fan is stuck or disconnected, which causes the drive to stop. | YELLOW |
| 5089 | SMT circuit malfunction A safe motor temperature fault is generated without a corresponding event, stopping the drive. | YELLOW |
| 5090 | STO hardware failure The safe torque off diagnostics detected a hardware failure, causing the drive to stop. | RED |
| 5091 | Safe torque off The safe torque off function is active due to a broken safety circuit signal, stopping the drive. | RED |
| 5092 | PU logic error The power unit memory has cleared, which forces the drive to stop operating. | YELLOW |
| 5093 | Rating ID mismatch The drive hardware does not match the information stored in memory, stopping the drive. | YELLOW |
| 5094 | Measurement circuit temperature A problem exists with the internal temperature measurement, causing the drive to stop. | YELLOW |
| 5098 | I/O communication loss The drive will stop functioning properly due to a communication failure with the standard input and output modules. | YELLOW |
| 50A0 | Fan The cooling fan is stuck or disconnected, which causes the drive to overheat and shut down. | YELLOW |
| 5681 | PU communication Communication errors are detected between the control unit and power unit, stopping the drive. | YELLOW |
| 5682 | Power unit lost The connection between the drive control unit and the power unit is lost, stopping the drive. | YELLOW |
| 5691 | Measurement circuit ADC A measurement circuit fault has occurred, which causes the drive to stop operating. | YELLOW |
| 5692 | PU board powerfail A power unit power supply failure has occurred, which causes the drive to stop. | YELLOW |
| 5693 | Measurement circuit DFF A measurement circuit fault has occurred inside the drive, which forces the equipment to shut down safely. | YELLOW |
| 5697 | Charging feedback The charging feedback signal is missing, which causes the drive to fault and stops the booth equipment. | YELLOW |
| 5698 | Unknown PU fault The power unit logic generated an unknown fault, which forces the drive to shut down the booth motor. | YELLOW |
| 6181 | FPGA version incompatible The firmware and FPGA versions are incompatible, which causes the drive to stop. | YELLOW |
| 6200 | Checksum mismatch The actual parameter checksums do not match the approved parameter checksums, which causes the drive to issue a mismatch fault. | YELLOW |
| 6306 | FBA A mapping file A fieldbus adapter mapping file read error has occurred, causing the drive to stop. | YELLOW |
| 6481 | Task overload An internal task overload fault has occurred, which causes the drive to stop. | YELLOW |
| 6487 | Stack overflow An internal stack overflow fault has occurred, which causes the drive to stop. | YELLOW |
| 64A1 | Internal file load An internal file read error has occurred, which forces the drive to stop. | YELLOW |
| 64A4 | Rating ID fault A rating ID load error has occurred, which causes the drive to stop. | YELLOW |
| 64A6 | Adaptive program An error occurred while running the adaptive program, which causes the drive to stop. | YELLOW |
| 64B1 | Internal SSW fault An internal software fault has occurred, which forces the drive to stop operating. | YELLOW |
| 64B2 | User set fault Loading the user parameter set failed due to incompatibility or missing data, stopping the drive. | YELLOW |
| 64B3 | Macro parameterization error Macro parameterization failed due to an invalid parameter write attempt, stopping the drive. | YELLOW |
| 64E1 | Kernel overload An operating system kernel overload error has occurred, causing the drive to stop. | YELLOW |
| 64FF | Fault reset A previous fault has been cleared from the control panel or network, which allows the drive to start the booth. | GREEN |
| 6581 | Parameter system A parameter load or save operation has failed, which causes the drive to stop. | YELLOW |
| 6591 | Backup/Restore timeout A control panel failed to communicate during a backup or restore operation, stopping the drive. | YELLOW |
| 65A1 | FBA A parameter conflict The drive lacks a functionality requested by the PLC, causing the drive to stop. | YELLOW |
| 6681 | EFB comm loss A communication break occurred in the embedded fieldbus, which causes the drive to stop. | YELLOW |
| 6682 | EFB config file The embedded fieldbus configuration file could not be read, causing the drive to stop. | YELLOW |
| 6683 | EFB invalid parameterization The embedded fieldbus parameter settings are inconsistent or incompatible, causing the drive to stop. | YELLOW |
| 6684 | EFB load fault The embedded fieldbus protocol firmware could not be loaded, causing the drive to stop. | YELLOW |
| 6685 | EFB fault 2 An embedded fieldbus protocol application fault has occurred, which causes the drive to stop. | YELLOW |
| 6686 | EFB fault 3 A fault reserved for the embedded fieldbus protocol application has occurred, causing the drive to stop the booth. | YELLOW |
| 6882 | Text 32-bit table overflow An internal text table overflow fault has occurred, causing the drive to stop. | YELLOW |
| 6885 | Text file overflow An internal text file overflow fault has occurred, which causes the drive to stop. | YELLOW |
| 7081 | Control panel loss The active control panel or PC tool has ceased communicating, stopping the drive. | YELLOW |
| 7082 | I/O module comm loss Communication between the IO module and the drive is failing, stopping the drive. | YELLOW |
| 7085 | Incompatible option module An unsupported fieldbus option module is detected, which causes the drive to stop. | YELLOW |
| 7086 | AI Overvoltage An overvoltage was detected on an analog input, which causes the drive to stop. | RED |
| 7121 | Motor stall The motor is operating in a stall region due to excessive load, stopping the drive. | YELLOW |
| 7122 | Motor overload The motor current is too high, which causes the drive to stop operating. | YELLOW |
| 7181 | Brake resistor The brake resistor is broken or not connected, which causes the drive to stop. | YELLOW |
| 7183 | BR excess temperature The brake resistor temperature has exceeded its fault limit, causing the drive to stop. | RED |
| 7191 | BC short circuit A short circuit exists in the brake chopper IGBT, causing the drive to stop. | RED |
| 7192 | BC IGBT excess temperature The brake chopper IGBT temperature has exceeded its internal limit, stopping the drive. | RED |
| 7310 | Overspeed This fault means the motor is turning faster than the highest allowed speed, causing the drive to stop the equipment. | YELLOW |
| 73B0 | Emergency ramp failed An emergency stop did not finish within the expected time, stopping the drive. | YELLOW |
| 73F0 | Overfrequency The maximum allowed output frequency has been exceeded, which causes the drive to stop. | YELLOW |
| 7510 | FBA A communication Cyclical communication with the fieldbus adapter module is lost, causing the drive to stop. | YELLOW |
| 8001 | ULC underload fault A signal has been under the user underload curve too long, stopping the drive. | YELLOW |
| 8002 | ULC overload fault A signal has been over the user overload curve too long, stopping the drive. | YELLOW |
| 80A0 | AI supervision An analog signal is outside the specified limits, which causes the drive to stop. | YELLOW |
| 80B0 | Signal supervision 1 A fault was generated by the first signal supervision function, stopping the drive. | YELLOW |
| 80B1 | Signal supervision 2 A fault was generated by the second signal supervision function, stopping the drive. | YELLOW |
| 80B2 | Signal supervision 3 A fault was generated by the third signal supervision function, stopping the drive. | YELLOW |
| 80B3 | Signal supervision 4 A fault was generated by the fourth signal supervision function, stopping the drive. | YELLOW |
| 80B4 | Signal supervision 5 A fault was generated by the fifth signal supervision function, stopping the drive. | YELLOW |
| 80B5 | Signal supervision 6 A fault was generated by the sixth signal supervision function, stopping the drive. | YELLOW |
| 9081 | External fault 1 A fault has occurred in the first external device, causing the drive to stop. | YELLOW |
| 9082 | External fault 2 A fault has occurred in the second external device, causing the drive to stop. | YELLOW |
| 9083 | External fault 3 A fault has occurred in the third external device, causing the drive to stop. | YELLOW |
| 9084 | External fault 4 A fault has occurred in the fourth external device, causing the drive to stop. | YELLOW |
| 9085 | External fault 5 A fault has occurred in the fifth external device, causing the drive to stop. | YELLOW |
| A2A1 | Current calibration The current offset and gain measurement calibration will occur at the next start, which delays the booth equipment slightly. | GREEN |
| A2B1 | Overcurrent The output current has exceeded the internal fault limit, which triggers a warning while the booth equipment continues to run. | RED |
| A2B3 | Earth leakage The drive has detected a load unbalance due to an earth fault, which triggers a warning without stopping the booth. | RED |
| A2B4 | Short circuit A short circuit has been detected in the motor or cables, which triggers a warning while the equipment keeps running. | RED |
| A2BA | IGBT overload The transistor junction temperature is excessive, which triggers a warning to protect the components while the booth continues operating. | RED |
| A3A1 | DC link overvoltage The intermediate circuit direct current voltage is too high while stopped, which prevents the drive from starting the booth. | RED |
| A3A2 | DC link undervoltage The intermediate circuit direct current voltage is too low while stopped, which prevents the drive from starting the equipment. | GREEN |
| A3AA | DC not charged The voltage of the intermediate direct current circuit has not reached operating level, which prevents the booth from starting. | GREEN |
| A490 | Incorrect temperature sensor setup The temperature cannot be supervised due to an incorrect adapter setup, which triggers a warning on the drive display. | GREEN |
| A491 | External temperature 1 The first measured external temperature has exceeded its warning limit, which alerts the operator without stopping the booth equipment. | GREEN |
| A492 | External temperature 2 The second measured external temperature has exceeded its warning limit, which alerts the operator while the booth continues running. | GREEN |
| A4A0 | Control board temperature The control unit temperature is too high, which triggers a warning while the drive continues to operate the booth. | RED |
| A4A1 | IGBT overtemperature The estimated drive transistor temperature is excessive, which generates a warning without stopping the booth equipment from running. | RED |
| A4A9 | Cooling The drive module temperature is excessive, which triggers a cooling warning while the booth equipment continues to operate. | RED |
| A4B0 | Excess temperature The power unit module temperature is excessive, which causes the drive to shut down the equipment. | RED |
| A4B1 | Excess temperature difference There is a high temperature difference between the insulated-gate bipolar transistors of different phases, which causes the drive to stop. | RED |
| A4F6 | IGBT temperature The drive insulated-gate bipolar transistor temperature is excessive, which causes the equipment to stop running. | RED |
| A581 | Fan The cooling fan feedback signal is missing, which triggers a warning while the drive continues to run the booth. | GREEN |
| A582 | Auxiliary fan missing The internal auxiliary cooling fan is stuck or disconnected, which causes the drive to stop. | GREEN |
| A5A0 | Safe torque off The safe torque off function is active because a safety circuit signal is lost, causing the drive to stop. | RED |
| A5EA | Measurement circuit temperature There is a problem with the internal temperature measurement of the drive, which causes the equipment to stop. | GREEN |
| A5EB | PU board powerfail A power unit power supply failure has occurred, causing the drive to shut down. | GREEN |
| A5ED | Measurement circuit ADC A measurement circuit fault has occurred, which causes the drive to stop operating. | GREEN |
| A5EE | Measurement circuit DFF A measurement circuit fault has occurred, which causes the drive to stop operating. | GREEN |
| A5EF | PU state feedback The state feedback from the output phases does not match the control signals, causing the drive to stop. | GREEN |
| A5F0 | Charging feedback The charging feedback signal is missing, which causes the drive to stop running. | GREEN |
| A682 | Flash erase speed exceeded The flash memory has been erased too frequently and compromised its lifetime, causing the drive to fault. | GREEN |
| A686 | Checksum mismatch The actual parameter checksums do not match the approved checksums, which prevents the drive from operating. | GREEN |
| A6A4 | Motor nominal value The motor parameters are set incorrectly and the drive is not dimensioned correctly, preventing the motor from starting. | GREEN |
| A6A5 | No motor data The required motor parameters have not been set, which prevents the drive from starting the motor. | GREEN |
| A6A6 | Voltage category unselected The voltage category has not been defined, which prevents the drive from operating the motor. | GREEN |
| A6A7 | System time not set The system time is not set, meaning timed functions cannot be used and fault log dates will be incorrect. | GREEN |
| A6B0 | User lock is open The user lock is open and configuration parameters are visible, which triggers a warning on the drive. | GREEN |
| A6B1 | User pass code not confirmed A new user pass code was entered but not confirmed, which triggers a warning on the drive. | GREEN |
| A6D1 | FBA A parameter conflict The drive lacks or has not activated a functionality requested by the PLC, causing a communication fault. | GREEN |
| A6E5 | AI parametrization The hardware setting of an analog input does not match the parameter settings, causing the drive to fault. | GREEN |
| A6E6 | ULC configuration A user load curve configuration error has occurred, which causes the drive to stop operating. | GREEN |
| A780 | Motor stall The motor is operating in a stall region due to excessive load or insufficient power, causing the drive to stop. | GREEN |
| A783 | Motor overload The motor current is too high, which causes the drive to stop to protect the equipment. | GREEN |
| A784 | Motor disconnect All three output phases are disconnected from the motor, which prevents the drive from running it. | GREEN |
| A793 | BR excess temperature The brake resistor temperature has exceeded its warning limit, which triggers an alert on the drive. | RED |
| A794 | BR data The brake resistor data has not been provided, which prevents the drive from operating correctly. | GREEN |
| A79C | BC IGBT excess temperature The brake chopper temperature has exceeded its internal warning limit, triggering an alert on the drive. | RED |
| A7A2 | Mechanical brake opening failed The mechanical brake acknowledgement status is incorrect during opening, which causes the drive to stop. | GREEN |
| A7AB | Extension I/O configuration failure The installed module does not match the configuration or communication was disturbed, which stops the drive from operating. | GREEN |
| A7C1 | FBA A communication Communication between the drive, PLC, and fieldbus adapter module is lost, causing the drive to stop. | GREEN |
| A7CE | EFB comm loss A communication break has occurred in the embedded fieldbus, which causes the drive to stop operating. | GREEN |
| A7EE | Panel loss The active control panel or PC tool has stopped communicating, which causes the drive to shut down. | GREEN |
| A88F | Cooling fan The cooling fan maintenance timer limit has been exceeded, triggering a warning on the drive. | GREEN |
| A8A0 | AI supervision An analog signal is outside the specified limits, which triggers a warning on the drive. | GREEN |
| A8A1 | RO life warning The relay has changed states more than the recommended number of times, which triggers a life warning on the drive. | GREEN |
| A8A2 | RO toggle warning The relay output is changing states faster than recommended, which triggers a toggle warning because the relay lifetime will be exceeded shortly. | GREEN |
| A8B0 | ABB Signal supervision 1 A warning has been generated by the signal supervision function one, alerting the operator without stopping the drive. | GREEN |
| A8B1 | ABB Signal supervision 2 A warning has been generated by the signal supervision function, which alerts the operator but allows the booth to run. | GREEN |
| A8B2 | ABB Signal supervision 3 A warning has been generated by the third signal supervision function, which alerts the operator without stopping the booth. | GREEN |
| A8B3 | ABB Signal supervision 4 A warning has been generated by the signal supervision function four, which alerts the operator without stopping the drive. | GREEN |
| A8B4 | ABB Signal supervision 5 The drive issues a warning generated by the internal signal supervision function five. | GREEN |
| A8B5 | ABB Signal supervision 6 A warning has been generated by the signal supervision function six, alerting the operator without stopping the drive. | GREEN |
| A8BE | ULC overload warning The selected signal has exceeded the user overload curve, which triggers a warning on the drive. | GREEN |
| A8BF | ULC underload warning The selected signal has fallen below the user underload curve, which triggers a warning on the drive. | GREEN |
| A981 | External warning 1 A fault has occurred in external device one, which triggers a warning on the drive. | GREEN |
| A982 | External warning 2 A fault has occurred in external device two, which triggers a warning on the drive. | GREEN |
| A983 | External warning 3 A fault has occurred in external device three, which triggers a warning on the drive. | GREEN |
| A984 | External warning 4 A fault has occurred in external device four, which triggers a warning on the drive. | GREEN |
| A985 | External warning 5 A fault has occurred in external device five, which triggers a warning on the drive. | GREEN |
| AF88 | Season configuration warning A season has been configured to start before the previous season, which triggers a warning on the drive. | GREEN |
| AF90 | Speed controller autotuning The speed controller autotune routine did not complete successfully, which prevents the drive from operating optimally. | GREEN |
| AFAA | Autoreset The drive indicates that an active fault is about to automatically clear itself. | GREEN |
| AFE1 | Emergency stop (off2) The drive has received an emergency stop command, which causes the motor to coast to a stop. | GREEN |
| AFE2 | Emergency stop (off1 or off3) The drive has received an emergency stop command, which causes the motor to ramp down and stop. | GREEN |
| AFE9 | Start delay The start delay is active, meaning the drive will wait for a predefined time before starting the motor. | GREEN |
| AFEB | Run enable missing The run enable signal is missing, which prevents the drive from starting the motor. | GREEN |
| AFED | Enable to rotate The signal to rotate was not received within the time delay, preventing the drive from starting. | GREEN |
| AFF6 | Identification run A motor identification run is scheduled and will occur at the next start command. | GREEN |
| AFF8 | Motor heating active Motor pre-heating is active and passing current through the motor, which keeps it warm before starting. | GREEN |
| B5A0 | STO event The safe torque off function is active because a safety signal is lost, causing the drive to stop. | RED |
| B686 | Checksum mismatch The actual parameter checksums do not match the approved checksums, which prevents the drive from operating. | GREEN |
| D401 | Max cleaning fault The maximum number of cleanings was reached in the defined time, causing the automatic system to fail and the drive to fault. | YELLOW |
| D404 | Running dry The dry run protection has been activated, which causes the drive to stop. | YELLOW |
| D405 | Pipe fill-timeout The soft pipe fill reached its timeout limit without hitting the setpoint, causing the variable frequency drive to stop. | YELLOW |
| D40C | Cavitation detected The system detects that the pump is not getting enough liquid, causing the variable frequency drive to stop running. | YELLOW |
| D501 | No more available PFC motors No more pump control motors can be started because they are interlocked or in hand mode. | GREEN |
| D502 | All motors interlocked All motors in the pump control system are interlocked, which prevents the drive from starting them. | GREEN |
| D503 | VSD controlled PFC motor interlocked The motor connected to the drive is interlocked and unavailable, preventing it from running. | GREEN |
| D505 | Max cleaning warning The maximum number of pump cleanings was reached within a defined time, which triggers a warning on the drive because the pump remains dirty. | GREEN |
| D506 | Pump cleaning not possible The pump cleaning sequence cannot be started because the drive is not in remote control with an active start signal. | GREEN |
| D507 | Pump cleaning needed Dirt detection indicates that the pump needs cleaning, but the automatic pump cleaning function is not allowed to start. | GREEN |
| D50A | Running dry The dry run protection has been activated, which causes the drive to stop the pump. | GREEN |
| D50B | Pipe fill-timeout The soft pipe fill has reached its timeout limit without hitting the setpoint, causing the drive to stop. | GREEN |
| D511 | Cavitation control A cavitation control warning has been triggered, alerting the operator to potential pump issues. | GREEN |
| D58B | Gas pressure outside limits The compressor gas pressure is outside the acceptable limits, which stops the drive from operating. | GREEN |
| D590 | Restart delay A compressor restart delay is active, which prevents the drive from starting until the delay time has fully elapsed. | GREEN |
| D591 | Min. run time The compressor minimum run time is active, which keeps the motor running until the time elapses. | GREEN |
| D602 | Cavitation tune completed The cavitation auto tune process has finished successfully, which causes the drive to stop. | GREEN |
| FA81 | Safe torque off 1 The first safe torque off circuit is broken and active, which forces the variable frequency drive to stop the motor. | RED |
| FA82 | Safe torque off 2 The safe torque off function is active because circuit two broke, stopping the drive. | RED |
| FF61 | ID run The motor identification run was not completed successfully, which causes the drive to stop. | YELLOW |
| FF63 | STO diagnostics failure. An internal software malfunction occurred in the diagnostics, causing the drive to stop. | RED |
| FF81 | FB A force trip A fault trip command was received through the fieldbus adapter, stopping the drive. | YELLOW |
| FF8E | EFB force trip A fault trip command was received through the embedded fieldbus interface, stopping the drive. | YELLOW |
Allen-Bradley PowerFlex 4M VFD · 15 codes
| Code | What it means | Risk |
|---|---|---|
| F003 | F003 Power Loss The drive stopped because it detected excessive voltage ripple from a lost incoming power phase. | YELLOW |
| F004 | F004 UnderVoltage The drive shut down because its internal voltage fell below the minimum required operating level. | YELLOW |
| F005 | F005 OverVoltage The drive stopped the motor because its internal voltage exceeded the maximum safe value. | YELLOW |
| F006 | F006 Motor Stalled The drive stopped because it was unable to accelerate the motor without exceeding its current limit. | YELLOW |
| F007 | F007 Motor Overload The drive stopped the motor because an excessive load triggered the internal electronic overload protection. | YELLOW |
| F008 | F008 Heatsink OvrTmp The drive stopped because its internal heatsink temperature exceeded the maximum allowed value. | YELLOW |
| F012 | F012 HW OverCurrent The drive shut down because the output current exceeded the internal hardware limit. | YELLOW |
| F013 | F013 Ground Fault The drive stopped the motor because it detected a current path to earth ground at the output terminals. | RED |
| F038 | F038 Phase U to Gnd The drive shut down because it detected a phase to ground fault on the U phase going to the motor. | RED |
| F041 | F041 Phase UV Short The drive stopped because it detected excessive current from a short circuit between the U and V output terminals. | RED |
| F063 | F063 SW OverCurrent The drive stopped the motor because the output current exceeded the programmed software trip limit. | YELLOW |
| F064 | F064 Drive Overload The drive stopped because the motor load exceeded the maximum time and current ratings of the drive. | YELLOW |
| F070 | F070 Power Unit The drive stopped operating because it detected a failure in its internal power section. | YELLOW |
| F081 | F081 Comm Loss The drive stopped because the communication port lost its connection to the control network. | YELLOW |
| F100 | F100 Parameter Checksum The calculated parameter checksum does not match the board checksum, which stops the drive from operating. | YELLOW |
Allen-Bradley PowerFlex 525 VFD · 16 codes
| Code | What it means | Risk |
|---|---|---|
| F002 | F002 Auxiliary Input An external auxiliary input signaled a trip, causing the drive to stop the equipment. | YELLOW |
| F003 | F003 Power Loss The drive lost an incoming supply phase while under load, causing the motor to stop. | YELLOW |
| F004 | F004 UnderVoltage The drive stopped because its internal voltage dropped below the minimum required level. | YELLOW |
| F005 | F005 OverVoltage The drive stopped because its internal voltage exceeded the maximum safe limit. | YELLOW |
| F006 | F006 Motor Stalled The drive stopped the motor because it could not accelerate or decelerate due to excessive current. | YELLOW |
| F007 | F007 Motor Overload The drive tripped and stopped the motor because an excessive load triggered the internal electronic overload. | YELLOW |
| F008 | F008 Heatsink OvrTmp The drive stopped because its internal heatsink temperature exceeded the maximum safe limit. | YELLOW |
| F012 | F012 HW OverCurrent The drive shut down because its output current exceeded the internal hardware limit. | YELLOW |
| F013 | F013 Ground Fault The drive stopped the motor because it detected a current path to earth ground at the output terminals. | YELLOW |
| F021 | F021 Output Ph Loss The drive stopped because one of the three output power phases to the motor is missing. | YELLOW |
| F029 | F029 Analog In Loss The drive stopped because a required analog input signal was lost during operation. | YELLOW |
| F038 | F038 Phase U to Gnd The drive shut down because it detected a phase to ground fault on the U phase going to the motor. | YELLOW |
| F041 | F041 Phase UV Short The drive stopped because it detected a short circuit between the U and V output terminals. | YELLOW |
| F059 | F059 Safety Open The drive disabled motor power because the safe torque off safety circuit opened. | YELLOW |
| F070 | F070 Power Unit The drive stopped operating because it detected a failure in its internal power section. | YELLOW |
| F081 | F081 DSI Comm Loss The drive stopped because communication with the master control device was interrupted. | YELLOW |
Danfoss VLT HVAC Drive FC 102 · 73 codes
| Code | What it means | Risk |
|---|---|---|
| 1 | 10 Volts low The drive control card voltage is below ten volts, causing the motor to stop running. | GREEN |
| 2 | Live zero error An analog input signal is below half of its programmed minimum, causing the drive to fault. | YELLOW |
| 4 | Mains phase loss The drive has a missing supply phase or high voltage imbalance, causing the motor to stop. | YELLOW |
| 5 | DC link voltage high The drive intermediate circuit voltage exceeds the high warning limit, but the unit remains active. | GREEN |
| 6 | DC link voltage low The drive intermediate circuit voltage is below the low warning limit, but the unit remains active. | GREEN |
| 7 | DC overvoltage The drive intermediate circuit voltage exceeds the maximum limit, causing the unit to trip and stop. | YELLOW |
| 8 | DC undervoltage The drive voltage dropped below the undervoltage limit without a backup supply, causing the unit to trip. | YELLOW |
| 9 | Inverter overload The drive is about to cut out due to an overload, which will stop the fan motor. | YELLOW |
| 10 | Motor overload temperature The drive will fault because the motor has become too hot from running with an overload for an extended period. | YELLOW |
| 11 | Motor thermistor over-temp The drive issues a warning or alarm indicating that the motor thermistor is disconnected or too hot. | YELLOW |
| 12 | Torque limit The drive warns that the motor torque has exceeded the programmed limit for either motor or generator mode. | YELLOW |
| 13 | Overcurrent The drive trips and issues an alarm because the peak current limit has been exceeded for more than one and a half seconds. | YELLOW |
| 14 | Ground fault The drive detects current leaking to ground in the motor or the motor cable and will stop operating. | RED |
| 15 | Hardware mismatch A fitted option is incompatible with the current control board, preventing that specific option from operating. | YELLOW |
| 16 | Short-circuit The drive will stop because it has detected a short circuit in the motor or the motor wiring. | RED |
| 17 | Control word timeout There is no communication to the adjustable frequency drive, which stops the drive from operating. | YELLOW |
| 18 | Start failed The drive fails to start because the motor speed could not reach the required minimum RPM within the allowed time. | YELLOW |
| 23 | Internal fan fault A protective warning indicates that the internal fan is either not running or not mounted properly. | GREEN |
| 24 | External fan fault A protective warning indicates that the external fan is either not running or not mounted properly. | GREEN |
| 25 | Brake resistor short-circuit The brake function is disabled and a warning appears because a short circuit has occurred in the brake resistor. | GREEN |
| 26 | Brake resistor power limit The drive issues a warning or trips because the dissipated braking energy has exceeded the safe power limit of the brake resistor. | YELLOW |
| 27 | Brake chopper fault The brake function is disabled and a warning is issued because a short circuit occurred in the brake transistor. | YELLOW |
| 28 | Brake check failed The braking system will not function because the brake resistor is either disconnected or completely broken. | YELLOW |
| 29 | Heatsink temp The drive heatsink has exceeded its maximum temperature and will remain locked out until it cools down sufficiently. | YELLOW |
| 30 | Motor phase U missing The drive will not run the motor because the U phase connection between the drive and the motor is missing. | YELLOW |
| 31 | Motor phase V missing The drive will not run the motor because the V phase connection between the drive and the motor is missing. | YELLOW |
| 32 | Motor phase W missing The drive will not run the motor because the W phase connection between the drive and the motor is missing. | YELLOW |
| 33 | Inrush fault The drive faults and stops operating because too many power-ups have occurred within a very short time period. | YELLOW |
| 34 | Fieldbus communication fault The drive loses network control because the serial communication bus on the option card is not working. | YELLOW |
| 36 | Mains failure The drive issues an alarm and stops because the main supply voltage to the unit has been lost. | YELLOW |
| 38 | Internal fault The drive stops operating and displays a specific code number indicating that an internal hardware or software fault has occurred. | YELLOW |
| 39 | Heatsink sensor The drive will fault because it is receiving no feedback signal from the heatsink temperature sensor on the power card. | YELLOW |
| 40 | Overload of digital output terminal 27 The drive faults because the load connected to digital output terminal 27 is overloaded or short-circuited. | GREEN |
| 41 | Overload of digital output terminal 29 The drive faults because the load connected to digital output terminal 29 is overloaded or short-circuited. | GREEN |
| 42 | Overload of digital output on X30/6 or overload of digital output on X30/7 The drive faults because the load connected to digital output X30/6 or X30/7 is overloaded or short-circuited. | GREEN |
| 45 | Ground fault 2 The drive stops operating because it has detected a secondary ground fault in the system. | RED |
| 46 | Power card supply The drive will not operate because the electrical supply on the power card is out of the acceptable range. | YELLOW |
| 47 | 24 V supply low The drive issues an alarm because the 24-volt DC supply on the control card has dropped below 18 volts. | GREEN |
| 48 | 1.8 V supply low The drive will fault because the internal 1.8-volt DC supply on the control card is outside of allowable limits. | GREEN |
| 49 | Speed limit The drive issues a warning because the motor speed has fallen outside the programmed low or high speed limits. | GREEN |
| 50 | AMA calibration failed The drive cannot operate because the automatic motor adaptation calibration process has failed. | YELLOW |
| 51 | AMA check Unom and Inom The automatic motor adaptation fails because the programmed settings for motor voltage, current, and power are incorrect. | YELLOW |
| 52 | AMA low Inom The automatic motor adaptation fails because the detected motor current is too low for the process to continue. | YELLOW |
| 53 | AMA motor too big The automatic motor adaptation process cannot run because the connected motor is too large for the drive. | YELLOW |
| 54 | AMA motor too small The automatic motor adaptation process cannot run because the connected motor is too small for the drive. | YELLOW |
| 55 | AMA parameter out of range The automatic motor adaptation cannot run because the programmed motor parameter values are outside the acceptable range. | YELLOW |
| 56 | AMA interrupted by user The automatic motor adaptation process has stopped because it was manually interrupted by a user. | YELLOW |
| 57 | AMA internal fault An internal fault occurred during the automatic motor adaptation, which stops the drive from running. | YELLOW |
| 58 | AMA Internal fault The automatic motor adaptation process has failed completely due to a severe internal drive fault. | YELLOW |
| 59 | Current limit The drive issues a warning or stops because the motor current has exceeded the programmed current limit. | GREEN |
| 60 | External interlock The drive trips and stops the motor because an external interlock signal indicates a fault condition outside the drive. | GREEN |
| 62 | Output frequency at maximum limit The drive issues a warning because the output frequency has reached its programmed maximum limit. | GREEN |
| 65 | Control card overtemperature The drive shuts down because the control card has reached its maximum cut-out temperature of 176 degrees Fahrenheit. | YELLOW |
| 66 | Heatsink temperature low The drive will not operate because the heatsink temperature sensor indicates the unit is too cold. | GREEN |
| 67 | Option module configuration has changed One or more options were added or removed since the last power down, which prevents the drive from starting. | YELLOW |
| 68 | Safe Stop activated The drive stops the motor immediately because the safe torque off function has been activated. | RED |
| 69 | Power card temperature The drive stops operating because the temperature sensor on the power card is reading either too hot or too cold. | YELLOW |
| 70 | Illegal FC configuration The control card and power card are incompatible, which prevents the drive from operating entirely. | YELLOW |
| 80 | Drive initialized to default value The drive has wiped its custom programming and returned all parameter settings to their factory defaults. | YELLOW |
| 92 | No-Flow The drive issues a warning or stops because it has detected a no-flow condition in the system. | YELLOW |
| 93 | Dry pump The drive detects a high-speed no-flow condition, which indicates the pump is running dry and may stop. | YELLOW |
| 94 | End of curve The drive warns of a possible system leak because the feedback remains lower than the required setpoint. | YELLOW |
| 95 | Broken belt The drive stops the motor because the torque has dropped below the no-load level, indicating a broken belt. | YELLOW |
| 96 | Start delayed The drive delays starting the motor to protect the equipment from short-cycling damage. | YELLOW |
| 97 | Stop delayed The drive delays stopping the motor to protect the equipment from short-cycling damage. | GREEN |
| 98 | Clock fault The drive issues a warning because the internal clock is not set or has completely failed. | GREEN |
| 200 | Fire mode The drive issues a warning to indicate that it is currently operating in emergency fire mode. | RED |
| 201 | Fire Mode was Active The drive indicates that it had previously entered emergency fire mode during a past event. | RED |
| 202 | Fire mode limits exceeded The drive warns that it has ignored critical alarm conditions to keep running while in fire mode. | RED |
| 203 | Missing motor The drive detects an underload condition in a multi-motor setup, which indicates a motor is missing or disconnected. | GREEN |
| 204 | Locked rotor The drive detects an overload condition in a multi-motor setup, which indicates a motor has a locked rotor. | GREEN |
| 250 | New spare part A component in the adjustable frequency drive was replaced, which prevents the drive from running until configured. | GREEN |
| 251 | New type code The power card or other components were swapped out and the type code changed, causing the drive to stop. | GREEN |
Siemens SINAMICS V20 VFD · 54 codes
| Code | What it means | Risk |
|---|---|---|
| F1 | Overcurrent The drive has detected an overcurrent condition, which causes the equipment to stop running immediately. | RED |
| F2 | Overvoltage The drive has detected an overvoltage condition, which forces the booth equipment to shut down. | YELLOW |
| F3 | Undervoltage The drive has detected an undervoltage condition, causing the booth equipment to stop operating. | YELLOW |
| F4 | Converter overtemperature The converter has reached an overtemperature condition, which causes the drive to stop the booth equipment. | YELLOW |
| F5 | Converter I2t The converter has exceeded its thermal current limit, causing the drive to stop the equipment. | YELLOW |
| F6 | Chip temperature rise exceeds critical levels The internal chip temperature rise has exceeded critical levels, which forces the drive to stop the booth. | YELLOW |
| F11 | Motor overtemperature The motor has reached an overtemperature condition, causing the drive to shut down the booth equipment. | YELLOW |
| F12 | Converter temperature signal lost The converter heat sink temperature sensor has a broken wire, which causes the drive to stop the equipment. | YELLOW |
| F20 | DC ripple too high The calculated direct current ripple level has exceeded the safe threshold, causing the drive to stop the booth. | RED |
| F23 | Output current ripple too high The calculated output ripple level has exceeded the safe threshold, which forces the drive to stop the equipment. | RED |
| F35 | Maximum number of auto restart attempts exceeded The auto restart attempts exceeded the maximum allowed value, which causes the drive to fault and stop trying to start. | YELLOW |
| F41 | Motor data identification failure The motor data identification process has failed, which prevents the drive from starting the booth equipment. | YELLOW |
| F51 | Parameter EEPROM fault A read or write failure occurred while accessing the memory, which prevents the drive from operating the booth. | YELLOW |
| F52 | Converter software fault A read failure for converter information or invalid data has occurred, causing the drive to stop the equipment. | YELLOW |
| F60 | Asic timeout An internal communications failure has occurred, which forces the drive to shut down the booth equipment. | YELLOW |
| F61 | SD card parameter cloning failed The parameter cloning process has failed, which prevents the drive from starting the booth equipment. | YELLOW |
| F62 | Parameter cloning contents invalid The cloning file exists but contains invalid data, which prevents the drive from operating the booth. | YELLOW |
| F63 | Parameter cloning contents incompatible The cloning file exists but is the wrong converter type, preventing the drive from loading the parameters. | YELLOW |
| F64 | Converter attempted to do an automatic clone during startup The required clone file is missing from the correct directory, which prevents the drive from starting the equipment. | YELLOW |
| F70 | I/O Extension Module communication fault Communication is no longer established with the extension module, causing the drive to stop the booth equipment. | YELLOW |
| F71 | USS setpoint fault (on RS232) The drive is receiving no setpoint values during the telegram off time, which causes the equipment to stop. | YELLOW |
| F72 | USS/MODBUS setpoint fault (on RS485) The drive is missing setpoint values from the communication network, causing the booth equipment to shut down. | YELLOW |
| F80 | Signal lost on analog input The signal has been lost on the analog input, which forces the drive to stop the booth equipment. | YELLOW |
| F85 | External fault An external fault has been triggered via the command input, causing the drive to stop the equipment. | YELLOW |
| A501 | Current limit The drive has reached its current limit, which triggers a warning but allows the booth equipment to keep running. | GREEN |
| A502 | Overvoltage limit The overvoltage limit has been reached during ramp down, which triggers a warning without stopping the booth equipment. | GREEN |
| A503 | Undervoltage limit The drive has reached its undervoltage limit, which generates a warning while the booth equipment continues to operate. | GREEN |
| A504 | Converter overtemperature The converter temperature warning level is exceeded, which reduces the output frequency while the booth equipment continues running. | GREEN |
| A505 | Converter I2t The converter thermal warning level has been exceeded, which reduces the current while the booth equipment keeps running. | GREEN |
| A506 | IGBT junction temperature rise warning The temperature difference between the heat sink and transistor exceeds warning limits, which alerts the operator without stopping the booth. | GREEN |
| A507 | Converter temperature signal lost The converter heat sink temperature signal has been lost, which triggers a warning but allows the equipment to run. | GREEN |
| A511 | Motor overtemperature I2t The motor is overloaded due to high load cycles or steps, which stops the drive to prevent damage. | GREEN |
| A523 | Output current ripple too high The calculated output ripple level has exceeded the safe threshold, which triggers a warning without stopping the booth equipment. | RED |
| A535 | Braking resistor overload The braking energy is too large for the resistor, which generates a warning while the booth equipment keeps running. | GREEN |
| A541 | Motor data identification active The motor data identification process is currently running, which keeps the drive busy before the booth can start. | GREEN |
| A600 | RTOS overrun warning An internal time slice overrun has occurred, which triggers a warning while the drive continues to operate the booth. | GREEN |
| A910 | Vdc_max controller deactivated The maximum voltage controller has deactivated due to high supply voltage, which triggers a warning without stopping the booth. | GREEN |
| A911 | Vdc_max controller active The maximum voltage controller is actively keeping the direct current link voltage below the specified limit while the booth runs. | GREEN |
| A912 | Vdc_min controller active The minimum voltage controller has activated because the direct current link voltage fell below the specified limit during operation. | GREEN |
| A921 | Analog output parameters not set properly The analog output parameters are set to identical values, which produces illogical results and triggers a warning on the drive. | GREEN |
| A922 | No load applied to converter There is no load applied to the converter, which causes some functions to operate differently while the booth runs. | GREEN |
| A923 | Both JOG left and JOG right are requested Both left and right jog commands have been requested simultaneously, which freezes the output frequency at its current value. | GREEN |
| A930 | Cavitation protection warn Conditions exist for possible pump cavitation damage, which triggers a warning while the booth equipment continues to operate. | GREEN |
| A936 | PID autotuning active The proportional integral derivative autotuning process is currently running, which keeps the drive busy before normal booth operation begins. | GREEN |
| A952 | Load monitoring warning The motor load conditions indicate a potential belt failure or mechanical fault, which triggers a warning without stopping the booth. | GREEN |
| F100 | Watchdog reset A software error has occurred within the drive, which forces the booth equipment to shut down immediately. | YELLOW |
| F101 | Stack overflow A software error or processor failure has occurred, causing the drive to stop operating the booth equipment. | YELLOW |
| F200 | Script error The internal converter program script has stopped running due to errors, which causes the drive to shut down. | YELLOW |
| F221 | PID feedback below minimum value The proportional integral derivative feedback has fallen below the minimum value, causing the drive to stop the equipment. | YELLOW |
| F222 | PID feedback above maximum value The proportional integral derivative feedback has exceeded the maximum value, which forces the drive to stop the booth. | YELLOW |
| F350 | Configuration vector for the converter failed The hardware does not match the programmed configuration vector, which causes the drive to trip and stop the booth. | YELLOW |
| F395 | Acceptance test/confirmation pending An acceptance test is pending after a startup clone or memory read error, which prevents the drive from starting. | YELLOW |
| F410 | Cavitation protection failure Conditions exist for potential pump cavitation damage due to insufficient fluid flow, causing the drive to stop the equipment. | YELLOW |
| F452 | Load monitoring trip The motor load conditions indicate a belt failure or mechanical fault, which forces the drive to stop the booth. | YELLOW |
Yaskawa GA500 AC Drive · 141 codes
| Code | What it means | Risk |
|---|---|---|
| CE | Modbus Communication Error A communication error on the Modbus network has occurred, which stops the drive from receiving control commands. | YELLOW |
| CF | Control Fault Incorrect motor parameters or settings have caused a control fault, forcing the drive to stop the motor. | YELLOW |
| E5 | MECHATROLINK Watchdog Timer Err The drive detected a watchdog circuit exception while receiving data, causing it to stop the motor. | YELLOW |
| EF | FWD/REV Run Command Input Error Forward and reverse commands were input simultaneously for over half a second, causing the drive to stop operating. | GREEN |
| GF | Ground Fault A ground fault occurred in the motor or wiring, causing the drive to shut down immediately. | RED |
| LF | Output Phase Loss A phase loss occurred on the drive output side, which stops power from reaching the motor. | YELLOW |
| PF | Input Phase Loss A phase loss or voltage imbalance in the input power has caused the drive to stop. | YELLOW |
| SC | Short Circuit/IGBT Failure A short circuit or ground fault occurred on the output side, immediately stopping the drive operation. | RED |
| SE | Modbus Test Mode Error A communications self-diagnostic test was attempted while the drive was running, which stops the drive from functioning normally. | GREEN |
| bb | Baseblock An external baseblock command was received by the system, which immediately stopped the drive output to the motor. | GREEN |
| oC | Overcurrent The drive output current exceeded the safe detection level, causing the drive to stop the motor. | YELLOW |
| oH | Heatsink Overheat The drive heatsink temperature exceeded the overheat alarm level, which will eventually stop the motor operation. | YELLOW |
| oS | Overspeed The motor speed exceeded the safe detection level, causing the drive to shut down the equipment. | YELLOW |
| ov | Overvoltage The internal bus voltage exceeded the safe detection level, causing the drive to stop the motor. | YELLOW |
| rF | Braking Resistor Fault The braking resistance is too low or connected incorrectly, causing the drive to halt the motor. | YELLOW |
| rH | Braking Resistor Overheat The braking resistor is overheating from excessive energy, which causes the drive to stop the motor. | YELLOW |
| rr | Dynamic Braking Transistor Fault A malfunction in the internal braking transistor has occurred, causing the drive to stop the motor. | YELLOW |
| AEr | Station Address Setting Error The communication node address is outside the permitted range, which stops the drive from communicating with the system. | GREEN |
| CP1 | Comparator 1 Limit Error The monitored value fell within the programmed limit range, triggering an error that halts the drive operation. | YELLOW |
| CP2 | Comparator 2 Limit Error The monitored value fell outside the programmed limit range, triggering an error that stops the drive. | YELLOW |
| CoF | Current Offset Fault A hardware problem or induced motor voltage has caused a current offset fault, stopping the drive from running. | YELLOW |
| CyC | MECHATROLINK CommCycleSettingErr The communications cycle setting of the controller is not in the permitted range, which causes the drive to fault and stop operating. | GREEN |
| EF0 | Option Card External Fault The communication option received an external fault or programming error, which stops the drive from running. | YELLOW |
| EF1 | External Fault (Terminal S1) An external device triggered a fault on terminal S1, causing the drive to stop the motor. | YELLOW |
| EF2 | External Fault (Terminal S2) An external device triggered a fault on terminal S2, causing the drive to stop the motor. | YELLOW |
| EF3 | External Fault (Terminal S3) An external device triggered a fault on terminal S3, causing the drive to stop the motor. | YELLOW |
| EF4 | External Fault (Terminal S4) An external device triggered a fault on terminal S4, causing the drive to stop the motor. | YELLOW |
| EF5 | External Fault (Terminal S5) An external device triggered a fault on terminal S5, causing the drive to stop the motor. | YELLOW |
| EF6 | External Fault (Terminal S6) An external device triggered a fault on terminal S6, causing the drive to stop the motor. | YELLOW |
| EF7 | External Fault (Terminal S7) An external device triggered a fault on terminal S7, causing the drive to stop the motor. | YELLOW |
| Err | EEPROM Write Error Hardware issues or electrical interference corrupted the memory data, preventing the drive from saving its settings. | YELLOW |
| FbH | Excessive PID Feedback The feedback value exceeded the high detection level, causing the drive to halt the current process. | YELLOW |
| FbL | PID Feedback Loss The feedback value dropped below the loss detection level, causing the drive to stop the motor. | YELLOW |
| HCA | High Current Alarm The drive output current exceeded the high current alarm level, which triggers an alarm but operation may continue. | GREEN |
| LF2 | Output Current Imbalance An imbalance in the output current to the motor has caused the drive to stop operating. | YELLOW |
| LoG | Log Com Error An error occurred with the keypad data logging function, which stops data recording but the drive keeps running. | GREEN |
| PGo | Encoder (PG) Feedback Loss The drive lost the feedback signal from the encoder, causing it to stop running the motor. | YELLOW |
| SCF | Safety Circuit Fault The safety circuit is broken, which immediately stops the drive and prevents the motor from running. | RED |
| TiM | Keypad Time Not Set The keypad date and time are not set, which prevents the drive from logging accurate fault times. | YELLOW |
| UL3 | Undertorque Detection 1 The drive detected an undertorque condition based on its settings, causing it to stop the motor. | YELLOW |
| UL4 | Undertorque Detection 2 The drive detected a secondary undertorque condition based on its settings, forcing the motor to stop. | YELLOW |
| UL5 | Mechanical Weakening Detection 2 The drive detected an undertorque condition related to mechanical weakening, which causes the drive to stop operating. | YELLOW |
| Uv1 | DC Bus Undervoltage The DC bus voltage dropped below the detection level, causing the drive to shut down the equipment. | YELLOW |
| Uv2 | Control Power Undervoltage The control power supply voltage dropped too low, which forces the drive to stop running the motor. | YELLOW |
| Uv3 | Soft Charge Answerback Fault There is damage to the soft charge bypass relay or contactor, which stops the drive from operating. | YELLOW |
| bAT | Keypad Battery Low Voltage The keypad battery voltage is low, which will eventually cause the keypad to lose its stored settings. | YELLOW |
| bCE | Bluetooth Communication Fault Radio interference or distance has disrupted the Bluetooth connection, preventing the mobile device from communicating with the drive. | YELLOW |
| bUS | Option Communication Error The drive lost its signal from the controller due to wiring or interference, causing the motor to stop. | YELLOW |
| boL | BrakingTransistor Overload Fault The braking transistor is broken or overloaded, which causes the drive to stop operating the motor. | YELLOW |
| dnE | Drive Disabled A terminal set for drive enable turned off, which immediately stops the drive from running. | GREEN |
| dv7 | Polarity Judge Timeout The drive timed out while attempting to determine the motor polarity, preventing normal operation. | YELLOW |
| nSE | Node Setup Error A node setup conflict occurred during operation, which prevents the drive from running the motor normally. | YELLOW |
| oC2 | Overcurrent2 The output current exceeded its programmed limit, which forces the drive to shut down the motor. | YELLOW |
| oH1 | Heatsink Overheat The drive heatsink temperature exceeded its maximum detection level, causing the drive to shut down completely. | YELLOW |
| oH2 | External Overheat (H1-XX=B) An external device sent an overheat alarm to the drive, which triggers a warning while the booth keeps running. | GREEN |
| oH3 | Motor Overheat (PTC Input) The motor temperature exceeded the overheat alarm level, triggering a warning before the drive shuts down. | YELLOW |
| oH4 | Motor Overheat Fault (PTC Input) The motor temperature exceeded the overheat fault level, causing the drive to shut down the motor. | YELLOW |
| oL1 | Motor Overload The electronic thermal protector detected a motor overload, causing the drive to stop powering the motor. | YELLOW |
| oL2 | Drive Overload The electronic thermal protector detected a drive overload, causing the unit to stop running the motor. | YELLOW |
| oL3 | Overtorque Detection 1 The drive detected an overtorque condition based on its settings, causing it to stop the motor. | YELLOW |
| oL4 | Overtorque Detection 2 The drive detected a secondary overtorque condition based on its settings, forcing the motor to stop. | YELLOW |
| oL5 | Mechanical Weakening Detection 1 The drive detected overtorque related to mechanical weakening, causing it to halt the motor for safety. | YELLOW |
| oL7 | High Slip Braking Overload An overload occurred during high slip braking, which causes the drive to stop operating the motor. | YELLOW |
| oPr | Keypad Connection Fault The keypad is not securely connected, which prevents the drive from receiving manual inputs or commands. | YELLOW |
| rUn | Motor Switch during Run The drive received a secondary motor selection command while running, which causes the drive to stop the motor. | GREEN |
| CALL | Serial Comm Transmission Error A communication error occurred on the serial network, which prevents the drive from receiving commands to run. | GREEN |
| CPEr | Control Mode Mismatch The keypad and drive settings do not agree during backup, which prevents the parameters from being saved. | YELLOW |
| CPyE | Error Writing Data The parameter restore process did not end correctly, meaning the drive cannot operate with the new settings. | YELLOW |
| CSEr | Control Mode Mismatch The keypad is broken, which prevents the operator from changing settings or running the drive manually. | YELLOW |
| CrST | Cannot Reset The drive received a fault clearing command while a run command was active, preventing the drive from starting. | GREEN |
| CyPo | Cycle Power to Accept Changes New communication option settings on the drive have not taken effect yet, so the drive will not run. | GREEN |
| End1 | Excessive Rated Voltage Setting Auto-tuning finished with calculation errors due to excessive torque or current, meaning the drive cannot operate optimally. | YELLOW |
| End2 | Iron Core Saturation Coefficient Auto-tuning finished with calculation errors for the iron core saturation coefficient, which prevents optimal drive performance. | YELLOW |
| End3 | Rated Current Setting Alarm Auto-tuning finished with calculation errors due to an incorrect rated current value, limiting the drive performance. | YELLOW |
| End4 | Adjusted Slip Calculation Error The auto tuning process completed with calculation errors for the adjusted slip, which prevents the drive from running optimally. | YELLOW |
| End5 | Resistance Tuning Error Auto-tuning finished with calculation errors for the line-to-line resistance, meaning the drive cannot operate the motor perfectly. | YELLOW |
| End6 | Leakage Inductance Alarm Auto-tuning finished with calculation errors for leakage inductance, which prevents the drive from achieving optimal motor control. | YELLOW |
| End7 | No-Load Current Alarm Auto-tuning finished with calculation errors for the no-load current, meaning the drive will not run the motor optimally. | YELLOW |
| End8 | HFI Alarm Auto-tuning finished with calculation errors during high frequency injection tuning, which limits the drive performance during operation. | YELLOW |
| End9 | Initial Pole Detection Alarm The drive cannot calculate the correct initial pole value during tuning, which prevents optimal motor operation. | YELLOW |
| L24v | Loss of External Power 24 Supply The voltage of the backup power supply has decreased, which can prevent the drive from maintaining control power. | GREEN |
| LT-1 | Cooling Fan Maintenance Time The cooling fan has reached ninety percent of its expected performance life, but the drive continues to operate. | GREEN |
| LT-2 | Capacitor Maintenance Time The main and control circuit capacitors reached ninety percent of their expected life, though the drive still operates. | GREEN |
| LT-3 | SoftChargeBypassRelay MainteTime The soft charge bypass relay has reached ninety percent of its expected performance life while the drive continues running. | GREEN |
| LT-4 | IGBT Maintenance Time (50%) The insulated gate bipolar transistor is at half of its expected performance life, and the drive continues operating normally. | GREEN |
| PASS | Modbus Communication Test The communications test is complete, meaning the drive is now ready to resume normal booth operations. | GREEN |
| PWEr | DWEZ Password Mismatch The password entered for the backup operation is incorrect, which prevents the drive from saving the parameters. | YELLOW |
| SToF | Safe Torque OFF Hardware A hardware fault occurred in the safe disable circuit, which immediately stops the drive and shuts down the motor. | RED |
| TrPC | IGBT Maintenance Time (90%) The insulated gate bipolar transistor reached ninety percent of its expected performance life, but the drive still operates. | GREEN |
| dCE1 | Communication Error1 A temporary drive hardware problem occurred due to electrical noise, causing the drive to stop the motor. | YELLOW |
| dCE2 | Communication Error2 Electrical noise has caused a temporary drive hardware problem, forcing the drive to halt the motor. | YELLOW |
| dFPS | Drive Model Mismatch A parameter restore was attempted on a different drive model, which stops the drive from accepting settings. | YELLOW |
| dWF1 | EEPROM Memory DWEZ Data Error An error in the memory circuit or data has occurred, which stops the drive from operating correctly. | YELLOW |
| dWF2 | DriveWorksEZ Fault 2 A fault occurred in the internal drive program, which causes the drive to stop the motor. | YELLOW |
| dWF3 | DriveWorksEZ Fault 3 An internal program fault has occurred, causing the drive to halt its current operation immediately. | YELLOW |
| dWFL | DriveWorksEZ Fault A fault in the custom drive program has occurred, which stops the drive from running the motor. | YELLOW |
| iFEr | Keypad Communication Error A communications error occurred between the keypad and the drive, preventing manual control of the booth equipment. | YELLOW |
| ndAT | Error Received Data The parameter settings differ between the keypad and drive or are missing, which stops the backup process. | YELLOW |
| rdEr | Error Reading Data A data backup was attempted while the copy function was disabled, preventing the drive from saving parameters. | YELLOW |
| vAEr | Voltage Class, Capacity Mismatch The power supply or capacity settings differ between the keypad and drive, which halts the backup process. | YELLOW |
| vFyE | Parameters do not Match The parameters backed up in the keypad do not match the drive, which prevents successful data verification. | YELLOW |
| CPF06 | Control Circuit Error (EEPROM memory Data Error) A memory data error occurred during a write operation, which prevents the drive from functioning properly. | YELLOW |
| EP24v | External Power 24V Supply The main circuit voltage decreased so the backup power supply is running the drive, limiting normal booth operation. | GREEN |
| Er-01 | Motor Data Error Auto-tuning failed because the entered motor data is incorrect, preventing the drive from running the booth motor. | YELLOW |
| Er-02 | Drive in an Alarm State Auto-tuning failed due to an active alarm or wiring issue, which stops the drive from operating the equipment. | YELLOW |
| Er-03 | STOP Button was Pressed The auto tuning process did not complete because the stop button was pressed, which halts the drive setup. | YELLOW |
| Er-04 | Line-to-Line Resistance Error Auto-tuning failed to measure the line-to-line resistance correctly, preventing the drive from operating the motor properly. | YELLOW |
| Er-05 | No-Load Current Error Auto-tuning failed to measure the no-load current correctly, which stops the drive from running the equipment optimally. | YELLOW |
| Er-08 | Rated Slip Error Auto-tuning failed to measure the rated slip correctly, meaning the drive cannot control the motor perfectly. | YELLOW |
| Er-09 | Acceleration Error The motor did not accelerate properly during auto-tuning, which prevents the drive from completing its setup process. | YELLOW |
| Er-10 | Motor Direction Error The motor rotated in the wrong direction during auto-tuning, causing the drive to halt the setup process. | YELLOW |
| Er-11 | Motor Speed Error The torque reference during acceleration was too high during auto-tuning, which stops the drive from finishing setup. | YELLOW |
| Er-12 | Current Detection Error The drive detected a current error during auto-tuning, preventing the system from completing the motor setup process. | YELLOW |
| Er-13 | Leakage Inductance Alarm The drive could not complete tuning for leakage inductance in time, which halts the motor setup process. | YELLOW |
| Er-14 | Motor Speed Error 2 The motor speed was too high during inertia tuning, causing the drive to stop the setup procedure. | YELLOW |
| Er-15 | Torque Saturation Error The output torque exceeded the limit during inertia tuning, which forces the drive to abort the setup. | YELLOW |
| Er-16 | Inertia ID Error The inertia found by the drive was out of range during tuning, which stops the setup process. | YELLOW |
| Er-17 | Reverse Prohibited Error Inertia tuning failed because reverse operation is disabled, preventing the drive from completing the motor setup process. | YELLOW |
| Er-18 | Back EMF Error The induced voltage tuning result was outside the applicable range, which halts the drive setup procedure immediately. | YELLOW |
| Er-19 | PM Inductance Error The permanent magnet motor inductance tuning results were out of range, preventing the drive from finishing setup. | YELLOW |
| Er-20 | Stator Resistance Error The permanent magnet motor stator resistance tuning results were out of range, which stops the setup process. | YELLOW |
| Er-25 | HighFreq Inject Param Tuning Err The motor data is incorrect for high frequency injection tuning, preventing the drive from completing the setup. | YELLOW |
| oFA00 | Option Not Compatible with Port The connected option card is not compatible with the port, preventing the drive from functioning properly. | YELLOW |
| oFA01 | Option Fault/ Connection Error The option card was changed during operation, causing the drive to fault and stop the motor. | YELLOW |
| oPE01 | Drive Capacity Setting Error The programmed capacity setting does not match the drive model, which prevents the drive from starting the booth. | YELLOW |
| oPE02 | Parameter Range Setting Error The programmed parameter settings are outside the applicable range, which stops the drive from running the equipment. | YELLOW |
| oPE03 | Multi-Function Input Setting Err The settings for multi-function inputs overlap or conflict, preventing the drive from starting the booth motor. | YELLOW |
| oPE05 | Run Cmd/Freq Ref Source Sel Err The run command or frequency reference assignment is incorrect, which prevents the drive from operating the booth. | YELLOW |
| oPE07 | Analog Input Selection Error The programmed settings for analog inputs overlap or conflict, which stops the drive from starting the equipment. | YELLOW |
| oPE08 | Parameter Selection Error An incompatible function was programmed for the selected control method, preventing the drive from running the booth. | YELLOW |
| oPE09 | PID Control Selection Fault The proportional integral derivative control parameters conflict with other settings, which stops the drive from operating normally. | YELLOW |
| oPE10 | V/f Data Setting Error The voltage and frequency pattern parameters do not meet required conditions, preventing the drive from starting the motor. | YELLOW |
| oPE11 | Carrier Frequency Setting Error The carrier frequency settings are incorrect or out of range, which stops the drive from running the booth. | YELLOW |
| oPE13 | Pulse Monitor Selection Error The pulse monitor selection is set incorrectly relative to frequency scaling, preventing the drive from operating the equipment. | YELLOW |
| oPE16 | Energy Saving Constants Error The energy saving parameters are outside the applicable setting range, which stops the drive from starting the motor. | YELLOW |
| PE1, PE2 | PLC Faults The communication option detected a fault, which stops the drive from receiving commands from the controller. | YELLOW |
| oFA10, oFA11 | Option Card Error Occurred at Option Port (CN5) An error has occurred within the option card, causing the drive to stop running the equipment. | YELLOW |
| oFA03 - oFA06 | Option Card Error Occurred at Option Port (CN5) A fault has occurred in the option card, which causes the drive to stop operating the booth. | YELLOW |
| oFA12 to oFA17 | Option Card Connection Error (CN5) A connection fault has occurred in the option card, which forces the drive to shut down the booth. | YELLOW |
| oFA30 to oFA43 | Communication Option Card Connection Error (CN5) A communication fault has occurred in the option card, causing the drive to stop the equipment. | YELLOW |
| CPF02, CPF03, CPF08, CPF11 - CPF14, CPF16 - CPF24, CPF38 | Control Circuit Error A hardware problem occurred in the drive control circuit, which completely shuts down the booth motor operation. | YELLOW |
Yaskawa V1000 VFD · 15 codes
| Code | What it means | Risk |
|---|---|---|
| CE | CE MEMOBUS/Modbus Communication Error The drive stopped because it did not receive control data over the communication network within the required time. | YELLOW |
| GF | GF Ground Fault The drive stopped the motor because it detected a severe ground fault on its output side. | RED |
| LF | LF Output Phase Loss The drive stopped the motor because it detected a missing power phase on its output side. | YELLOW |
| PF | PF Input Phase Loss The drive stopped because it detected a missing input power phase or a large voltage imbalance. | YELLOW |
| SC | SC IGBT Short Circuit The drive stopped operating because it detected a short circuit in its internal power components. | RED |
| oC | oC Overcurrent The drive stopped the motor because its sensors detected an output current exceeding the maximum limit. | YELLOW |
| oH | oH Heatsink Overheat The drive stopped because its internal heatsink temperature exceeded the maximum programmed limit. | YELLOW |
| oV | oV Overvoltage The drive stopped because its internal DC bus voltage exceeded the maximum safe detection level. | YELLOW |
| rr | rr Dynamic Braking Transistor The drive stopped because its internal dynamic braking transistor failed during operation. | YELLOW |
| Uv1 | Uv1 DC Bus Undervoltage The drive stopped operating because its internal DC bus voltage fell below the minimum required level. | YELLOW |
| bUS | bUS Option Communication Error The drive lost its option card communication connection after establishing it, which stops the equipment. | YELLOW |
| oH1 | oH1 Overheat 1 (Heatsink Overheat) The drive shut down because its heatsink temperature severely exceeded the maximum safe operating limit. | YELLOW |
| oL1 | oL1 Motor Overload The drive stopped the motor because the internal electrothermal sensor tripped the overload protection. | YELLOW |
| oL2 | oL2 Drive Overload The drive stopped operating because its internal thermal sensor triggered the overload protection. | YELLOW |
| oL3 | oL3 Overtorque Detection 1 The drive stopped the motor because the output current exceeded the programmed torque limit for too long. | YELLOW |
Burner controls, ignition and flame safeguards
Brahma SR / VE / AT / BV / GV Electromechanical Flame Control · 1 codes
| Code | What it means | Risk |
|---|---|---|
| Lockout lamp lit (Bloc) | Steady lockout pilot lamp on the reset button The burner locks out completely because the control box has entered a general safety lockout state. | RED |
Dungs VPS 504 Valve Proving System · 2 codes
| Code | What it means | Risk |
|---|---|---|
| Red signal lamp lit | Red signal lamp lights The test section is leaky or failed to reach the required pressure increase, which faults the system and stops the burner. | RED |
| Yellow signal lamp lit | Yellow signal lamp lights up The burner continues normal operation because the valve proving test passed and the section is tight. | GREEN |
Fenwal 35-60 / 35-61 Direct Spark Ignition · 4 codes
| Code | What it means | Risk |
|---|---|---|
| 1 Flash | 1 Flash An air flow fault has occurred, causing the ignition system to lock out the burner. | RED |
| 2 Flashes | 2 Flashes A flame was detected without a demand for heat, forcing the burner to shut down. | RED |
| 3 Flashes | 3 Flashes An ignition failure has occurred, causing the burner system to go into a lockout state. | RED |
| Steady on | Steady on An internal control failure has occurred, which causes the burner to lock out. | YELLOW |
Fireye MicroM Burner Control · 7 codes
| Code | What it means | Risk |
|---|---|---|
| Lockout Intrlck Open | Lockout Intrlck Open The running interlock circuit was open when it needed to be closed, causing the control to lock out. | RED |
| Lockout Check Scanner | Lockout Check Scanner The control detected a scanner problem like a defective shutter or false-firing UV tube and locked out the system. | RED |
| Lockout Check BLOWN FUSE | Lockout Check BLOWN FUSE No power was detected on terminal three due to a blown chassis fuse, causing the control to lock out. | RED |
| Lockout Flame Fail - AUTO | Lockout Flame Fail - AUTO The burner locked out because the flame signal was lost during normal firing operation. | RED |
| Lockout Flame Fail - MTFI | Lockout Flame Fail - MTFI The burner locked out and shut off the fuel because the main flame was not detected during the main ignition trial. | RED |
| Lockout Flame Fail - PTFI | Lockout Flame Fail - PTFI The burner locked out and triggered an alarm because the pilot flame was not detected during the ignition trial. | RED |
| Lockout False Flame - STANDBY | Lockout False Flame - STANDBY A false flame was detected during standby, causing the safety circuit to keep fuel valves closed and lock out the control. | RED |
Fireye MicroM Flame Safeguard (MC-5000) · 18 codes
| Code | What it means | Risk |
|---|---|---|
| 6 | Lockout Line Frequency Noise Detected Electrical noise or spikes were detected on the main power, locking out the burner control. | RED |
| 7 | Lockout Flame Fail - PTFI The pilot flame was not detected during the trial period, locking out the burner system. | RED |
| 15 | Lockout Fault Unknown An unknown fault has occurred, causing the control module to lock out the burner system. | RED |
| 16 | Lockout Amplifier High Count Fail The amplifier signal level is abnormally high, forcing the burner control into a lockout state. | RED |
| 19 | Lockout Flame Fail - MTFI The main flame was not detected during the trial period, locking out the burner system. | RED |
| 20 | Lockout False Flame - STANDBY A false flame was detected during standby or purge, preventing the burner from starting up. | RED |
| 21 | Lockout Intrlck Open The running interlock switch opened or failed to close, locking out the burner control system. | RED |
| 22 | Lockout Intrlck Closed The interlock switch was detected as closed when it was expected open, preventing burner startup. | RED |
| 24 | Lockout Chassis Opto The chassis opto-couplers have short circuited, forcing the burner control into a lockout state immediately. | RED |
| 37 | Lockout Flame Fail - AUTO A flame failure occurred during the main firing period, locking out the burner control system. | RED |
| 39 | Lockout Main Valve Voltage was detected on the main fuel valve during pilot ignition, locking out the burner. | RED |
| 54 | Lockout Check Chassis Improper voltage timing or a welded relay was detected, locking out the burner control system. | RED |
| 55 | Lockout Check Programmer Improper voltage timing or an internal diagnostic failure occurred, locking out the burner control system. | RED |
| 56 | Lockout Check Amplifier The amplifier module failed its internal diagnostic tests, forcing the burner into a lockout state. | RED |
| 58 | Lockout Amplifier Auto Check Fail The flame signal is too high or an internal fault occurred, locking out the burner. | RED |
| 59 | Lockout Check BLOWN FUSE A blown fuse or defective pilot component was detected, locking out the burner control system. | RED |
| 76 | Lockout Check Scanner A defective scanner shutter or false firing UV tube was detected, locking out the burner. | RED |
| N/A | System Error A system error occurred due to an electrical noise transient, locking out the burner control. | RED |
Fireye YB110 Burner Management System · 7 codes
| Code | What it means | Risk |
|---|---|---|
| LOCKOUT FALSE FLAME | LOCKOUT FALSE FLAME The burner locked out because the control detected a flame signal when no flame was supposed to be present. | RED |
| LOCKOUT CHECK SCANNER | LOCKOUT CHECK SCANNER The burner locked out because the control detected a problem with the flame scanner. | RED |
| LOCKOUT FLAME FAIL (AUTO) | LOCKOUT FLAME FAIL (AUTO) The burner shut down the fuel and locked out because it lost the flame signal during normal operation. | RED |
| LOCKOUT FLAME FAIL - MTFI | LOCKOUT FLAME FAIL - MTFI The burner locked out because the control failed to detect the main flame during the main ignition trial period. | RED |
| LOCKOUT FLAME FAIL - PTFI | LOCKOUT FLAME FAIL - PTFI The burner locked out because the control failed to detect a pilot flame during the ignition trial period. | RED |
| LOCKOUT M-D LIMIT OPEN - PTFI | LOCKOUT M-D LIMIT OPEN - PTFI The burner locked out because the low fire start interlock switch opened during the pilot ignition trial. | RED |
| LOCKOUT 3-P INTLK OPEN - PREPURGE | LOCKOUT 3-P INTLK OPEN - PREPURGE The running interlock circuit was open during prepurge, which causes the burner management system to lock out. | RED |
Honeywell 7800 Series Burner Control (RM7800 / RM7840) · 8 codes
| Code | What it means | Risk |
|---|---|---|
| *Running ILK* | Running ILK The burner locked out because a required safety device in the running interlock circuit failed to close during prepurge. | RED |
| *High Fire Sw.* | High Fire Sw. The burner locked out because the control could not confirm the damper reached the fully open high fire position for purging. | RED |
| *Airflow Switch* | Airflow Switch The control did not get proof of proper combustion airflow during the prepurge cycle, which causes the burner control to fault. | RED |
| *Flame Detected* | Flame Detected The control saw an unexpected flame signal while the shutter was open during prepurge, which causes the burner control to lock out. | RED |
| *Main Flame Fail* | Main Flame Fail The burner locked out because the control module lost the main flame signal during normal operation. | RED |
| *Preignition ILK* | Preignition ILK The burner locked out because a preignition safety interlock was not in its expected state before starting. | RED |
| *Low Fire Sw. Off* | Low Fire Sw. Off The burner locked out because the control could not confirm the burner reached the low fire position during prepurge. | RED |
| *Pilot Flame Fail* | Pilot Flame Fail The burner locked out because the control module failed to detect a pilot flame during the ignition period. | RED |
Honeywell S8610U Intermittent Pilot Ignition · 11 codes
| Code | What it means | Risk |
|---|---|---|
| 2 | 2 The pilot flame was not detected during ignition, causing a five minute burner retry delay. | YELLOW |
| 3 | 3 The flame failed during operation, causing the burner to recycle and attempt another ignition sequence. | YELLOW |
| 4 | 4 A flame was sensed out of sequence, forcing the burner system to lock out immediately. | RED |
| 5 | 5 A damper error occurred because it failed to operate correctly, preventing the burner from starting. | YELLOW |
| 6 | 6 An internal error occurred within the control module, causing the burner system to shut down. | YELLOW |
| 7 | 7 The flame rod has shorted to ground, forcing the burner system into a lockout state. | YELLOW |
| 8 | 8 The secondary voltage supply is too low, preventing the burner control from operating the equipment. | YELLOW |
| OFF | OFF There is no demand for heat, which means the burner remains off and the booth will not heat. | GREEN |
| Heartbeat | Heartbeat The normal startup and ignition sequence has begun, allowing the burner to proceed with firing. | GREEN |
| Flash Fast | Flash Fast The control is performing an internal startup evaluation, temporarily delaying the burner from firing. | GREEN |
| 4 Seconds ON then “x” flashes | 4 Seconds ON then “x” flashes The device is in normal run mode, keeping the burner operating while displaying flame current. | GREEN |
Honeywell S89 / S8600 Direct Spark Ignition Module · 2 codes
| Code | What it means | Risk |
|---|---|---|
| Ignition safety lockout (failed trial) | Ignition safety lockout (failed trial) The main burner failed to ignite during the trial period, causing the gas control to close and locking out the system. | RED |
| Safe start lockout (flame present at start) | Safe start lockout (flame present at start) A flame or false flame signal was detected during a heat request, causing the module to lock out without starting the igniter. | RED |
Kromschroder BCU 46x / 480 Burner Control Unit · 21 codes
| Code | What it means | Risk |
|---|---|---|
| 51 | Blinking 51 A signal interruption occurred at the safety interlock or emergency stop, shutting down the burner. | RED |
| 53 | Blinking 53 The time between two starts is less than the minimum allowed, preventing the burner from firing. | GREEN |
| Ot | Ot The ambient temperature is too high for the control unit, stopping operation until it cools down. | GREEN |
| Ut | Ut The ambient temperature is too low for the control unit, stopping operation until it warms up. | GREEN |
| E 02 | Blinking E 02 The burner locks out because no flame was established by the end of the first safety time during startup. | RED |
| E 04 | Blinking E 04 The burner locks out because the flame signal fell below the switch off threshold during normal operation. | RED |
| E 05 | Blinking E 05 The burner locks out because an incorrect extraneous flame signal was detected before the second burner ignited. | RED |
| E 08 | Blinking E 08 The burner locks out because the second burner experienced a flame failure during operation or delayed controller enable. | RED |
| E 11 | Blinking E 11 The first burner had more than five restarts within fifteen minutes, which locks out the burner. | RED |
| E 32 | Blinking E 32 The burner locks out because the supply voltage is out of range or there is an internal device error. | YELLOW |
| E 40 | Blinking E 40 The burner locks out because the tightness test detected a leak in the first gas solenoid valve. | RED |
| E 41 | Blinking E 41 The burner locks out because the tightness test detected a leak in a downstream gas solenoid valve. | RED |
| E 44 | Blinking E 44 The system detected a faulty pressure switch signal, which prevents the burner from operating. | RED |
| E 80 | Blinking E 80 An error occurred in the flame amplifier for burner one, causing the burner to lock out. | RED |
| E c1 | Blinking E c1 The valve closure is not confirmed during standby, preventing the burner from starting up. | RED |
| E c8 | Blinking E c8 The system failed to confirm that the proof of closure switch is open, locking out the burner. | RED |
| E d0 | Blinking E d0 A high air pressure signal is present before the fan turns on, meaning the no flow state failed and the burner control stops operating. | RED |
| E d1 | Blinking E d1 The air monitor failed to switch after the air supply activated, causing the burner to lock out. | RED |
| E dP | Blinking E dP The air pressure switch input signal dropped out during the pre purge cycle, which causes the burner control unit to fault. | RED |
| E d2 to E d8 | Blinking E d2 ... E d8 (digit = program step 02 to 08) The air supply failed during startup or operation, causing the burner to shut down immediately. | RED |
| E u1 to E u9 | Blinking E u1 ... E u9 (digit = program step) The minimum gas pressure monitoring signal dropped out during a specific program step, which locks out the burner. | RED |
Kromschroder IFD 244 / IFD 258 Automatic Burner Control · 12 codes
| Code | What it means | Risk |
|---|---|---|
| 01 | Blinking 01 An incorrect flame signal was detected before ignition, preventing the burner from starting up. | RED |
| 02 | Blinking 02 No flame was detected by the end of the safety time, causing the burner to lock out. | RED |
| 04 | Blinking 04 The flame failed during normal operation, causing the burner system to lock out immediately. | RED |
| 09 | Blinking 09 The start-up signal input experienced faulty actuation, which prevents the burner control from operating. | YELLOW |
| 10 | Blinking 10 The remote clearing input was actuated incorrectly or too many times, locking out the burner control. | YELLOW |
| 29 | Blinking 29 An internal device error has occurred, causing the burner control unit to shut down completely. | RED |
| 31 | Blinking 31 An abnormal change in the factory default settings occurred, causing the burner to lock out. | YELLOW |
| 32 | Blinking 32 The supply voltage is too low, preventing the burner control unit from operating the system. | YELLOW |
| 33 | Blinking 33 The burner locks out because the control unit has faulty parameterization settings. | YELLOW |
| 52 | Blinking 52 The clearing input is being held active permanently, which prevents the burner control from operating normally. | GREEN |
| 53 | Blinking 53 A startup was initiated before the minimum wait time passed, preventing the burner from firing. | GREEN |
| 81 to 99 | Blinking 81 to 99 (including 83, 93) A system fault or wiring defect has occurred, forcing the burner into a safety shutdown. | RED |
Kromschroder PFU 780 / PFU 760 Burner Control Unit · 15 codes
| Code | What it means | Risk |
|---|---|---|
| 2 | Blinking 2 The pilot burner failed to produce a flame signal during startup, causing a system lockout. | RED |
| 3 | Blinking 3 The pilot burner flame failed during the proving period, causing the system to lock out. | RED |
| 4 | Blinking 4 The pilot burner flame failed during normal operation, forcing the system to shut down immediately. | RED |
| 5 | Blinking 5 A flame signal is present on the main burner when none is expected, preventing startup. | RED |
| 6 | Blinking 6 The main burner failed to produce a flame signal during startup, causing a system lockout. | RED |
| 7 | Blinking 7 The main burner flame failed during the proving period, causing the system to lock out. | RED |
| 8 | Blinking 8 The main burner flame failed during normal operation, forcing the system to shut down immediately. | RED |
| 10 | Blinking 10 The system detected a faulty remote clearing signal, which prevents the burner control from operating normally. | YELLOW |
| 32 | Blinking 32 The supply voltage is too low, preventing the burner control unit from operating the equipment. | YELLOW |
| 33 | Blinking 33 Faulty parameter settings were detected in the control unit, causing the burner to lock out. | YELLOW |
| 35 | Blinking 35 A short circuit occurred on a valve output, forcing the burner control to shut down. | RED |
| 36 | Blinking 36 A short circuit occurred on the ignition or valve output, shutting down the burner system. | RED |
| 51 | Blinking 51 A safety interlock failure has occurred, forcing the burner system to shut down immediately. | RED |
| 52 | Blinking 52 The clearing input is being held active permanently, which prevents the burner control from operating normally. | GREEN |
| 53 | Blinking 53 The time between two startups is too short, preventing the burner from firing up again. | GREEN |
Nu-Way XGN 450-3000 MBC Microprocessor Burner Control · 16 codes
| Code | What it means | Risk |
|---|---|---|
| 20H | 20H The air pressure switch is not in the rest position, which prevents the burner from starting. | RED |
| 21H | 21H The air pressure switch has failed, which prevents the burner from operating. | RED |
| 22H | 22H The gas pressure switch has failed, which prevents the burner from operating. | RED |
| 25H | 25H The burner locks out because no flame was established after the safety period ended. | RED |
| 26H | 26H The burner locks out because extraneous light was detected inside the combustion chamber. | RED |
| 27H | 27H The burner locks out because the flame failed while the system was in normal operation. | RED |
| 2BH | 2BH The burner locks out because there is a short circuit in the photoresistor flame sensor. | RED |
| 43H | 43H The burner locks out because the system detected a leak in the first gas valve. | RED |
| 44H | 44H The burner locks out because the system detected a leak in the second gas valve. | RED |
| 66H | 66H The burner stops because there is a fault with the gas servomotor or the coding plug. | RED |
| 68H | 68H The burner stops because the system detected an acknowledgement fault with the air servomotor. | RED |
| 69H | 69H The burner stops because the system detected an acknowledgement fault with the gas servomotor. | RED |
| 6AH | 6AH The burner stops because the air motor position has moved out of its acceptable tolerance. | RED |
| 6BH | 6BH The burner stops because the gas motor position has moved out of its acceptable tolerance. | RED |
| 6EH | 6EH The burner will not start because the motors have been interchanged or incorrectly connected. | RED |
| 6FH | 6FH The burner stops because either the gas or air servo motor is unable to find its reference positions. | RED |
Riello RDB 2.2 Burner Control (MO 535 - MPF) · 9 codes
| Code | What it means | Risk |
|---|---|---|
| Red steady on | Reset button: steady red The burner control locks out because no flame was established at the end of the safety time. | RED |
| Orange steady on | Reset button: steady orange The burner control locks out due to a mains supply frequency error, stopping the heating system. | GREEN |
| Red blinking (0.5s/0.5s) | Reset button: red blinking The burner control locks out because a false flame or extraneous light signal was detected. | RED |
| Red fast blinking (0.2s/0.2s) | Reset button: red fast blinking The burner control locks out after reaching the maximum number of recycles due to repeated flame failures. | RED |
| Green + red blinking (0.5s/0.5s) | Reset button: green and red blinking The burner control locks out because it detects extraneous light or a false flame signal. | RED |
| Orange + green blinking (0.5s/0.5s) | Reset button: orange and green blinking The burner control locks out due to an internal memory error, preventing the burner from starting. | RED |
| Orange + green fast blinking (0.2s/0.2s) | Reset button: orange and green fast blinking The burner control locks out due to an internal voltage monitor error, preventing burner operation. | GREEN |
| Red + green inverted flashing (2.5s/0.5s) | Reset button: red and green inverted flashing The burner control locks out due to an internal control circuit fault driving the oil valve. | RED |
| Red + orange inverted flashing (2.5s/0.5s) | Reset button: red and orange inverted flashing The burner control locks out due to a fan motor error, stopping the combustion process. | RED |
Riello RDB 3.2 BT 50/70 Burner Control · 11 codes
| Code | What it means | Risk |
|---|---|---|
| Red steady on | Reset button: steady red The burner control locks out because no flame was detected at the end of the safety time. | RED |
| Orange steady on | Reset button: steady orange The burner control locks out due to a mains supply frequency anomaly, stopping the heating system. | GREEN |
| Red blinking (0.5s/0.5s) | Reset button: red blinking The burner control locks out because an extraneous light or parasite flame signal was detected. | RED |
| Red flashing (0.5s/2.5s) | Reset button: red long-gap flashing The burner control locks out because the oil pre-heater exceeded its maximum pre-heating time. | RED |
| Red fast blinking (0.2s/0.2s) | Reset button: red fast blinking The burner control locks out after reaching the maximum number of recycles from repeated flame failures. | RED |
| Green + red blinking (0.5s/0.5s) | Reset button: green and red blinking The burner control locks out because it detects extraneous light or a parasite flame signal. | RED |
| Orange + green blinking (0.5s/0.5s) | Reset button: orange and green blinking The burner control locks out due to an internal memory fault, preventing the burner from starting. | RED |
| Green + red fast blinking (0.2s/0.2s) | Reset button: green and red fast blinking The system detected an anomaly with the local or remote clearing button, which prevents the burner from operating. | GREEN |
| Orange + green fast blinking (0.2s/0.2s) | Reset button: orange and green fast blinking The burner control locks out due to an internal voltage fault, preventing burner operation. | GREEN |
| Red + green inverted flashing (2.5s/0.5s) | Reset button: red and green inverted flashing The burner control locks out due to a malfunction in the internal control circuit driving the oil valve. | RED |
| Red + orange inverted flashing (2.5s/0.5s) | Reset button: red and orange inverted flashing The burner control locks out due to a fan motor fault, stopping the combustion process. | RED |
Riello RS/E BLU Burner Control (REC 27.100A2 with RDI21 display) · 24 codes
| Code | What it means | Risk |
|---|---|---|
| 2 | No flame at the end of the first safety time (TSA1) The burner control box locks out because no flame was detected at the end of the first safety time. | RED |
| 4 | No flame at the end of the safety time (2) The burner control box locks out because no flame was detected at the end of the second safety time. | RED |
| 7 | Extraneous light The burner control box locks out because it detects extraneous light inside the combustion chamber. | RED |
| 12 | Loss of flame during operation The burner control box locks out because the flame was lost during normal operation. | RED |
| 20 | Air pressure error The burner control box detected an air pressure error, which locks out the burner. | RED |
| c: 2 | c: 2 (alternating with d: 1 / d: 2 / d: 4) The burner control box locks out because no flame was detected at the end of the ignition safety time. | RED |
| c: 3 | c: 3 (alternating with d: 0/1/4/20/68/84) The system detected an air pressure error at startup, which locks out the burner. | RED |
| c: 4 | c: 4 (alternating with d: 0/1/2 and combinations) The burner control box locks out because it detects extraneous light during startup or shutdown. | RED |
| c: 7 | c: 7 (alternating with d: 0/3) The burner locks out because the system detected a loss of flame during operation or testing. | RED |
| c: 12 | c: 12 (alternating with d: 0/1/2/3/4/5) The burner locks out because the system detected a leaking gas valve or a configuration problem during the leak test. | RED |
| c: 14 | c: 14 (alternating with d: 0/1/64) The burner locks out at startup because the proof of closure switch is in the wrong position. | RED |
| c: 20 | c: 20 (alternating with d: 0/1) The system detected a lack of minimum gas or oil pressure, which locks out the burner at startup. | RED |
| c: 21 | c: 21 (alternating with d: 0/1/64) The maximum gas or oil pressure was exceeded, which locks out the burner at startup. | RED |
| c: 22 | c: 22 / OFF S (alternating with d: 0 and combinations) The burner locks out at startup because the safety circuit or burner flange is open. | RED |
| c: 60 | c: 60 (d: 0) An internal error occurred because there is no valid load checking device, which locks out the burner. | RED |
| c: 70 | c: 70 (with d: 23 / d: 26) A fuel and air checking error occurred during modulation position calculation, which locks out the burner. | RED |
| c: 71 | c: 71 (with d: 0/1/2/3) The burner stops because a special position like standby, purging, or ignition is not defined for the servomotors. | RED |
| c: 85 | c: 85 (with d: 0 / d: 1) The burner stops because the fuel or air servomotor failed to reach its required reference position. | RED |
| c: 93 | c: 93 (with d: 3) The burner locks out because there is a flame signal acquisition error caused by a short circuit in the sensor. | RED |
| c: 95 | c: 95 (with d: 3/4/5/6) An active contact caused a relay supervision error with the external power supply, which stops the burner control from operating the valves or ignition transformer. | RED |
| c: 96 | c: 96 (with d: 3/4/5/6) A relay supervision error indicates that the relay contacts have welded together, which locks out the burner. | RED |
| No Comm | No Comm The burner control box lost communication with the display, preventing the operator from monitoring the system. | YELLOW |
| c: 50 to 58 | c: 50 to c: 58 The burner locks out due to an internal error in the control box. | RED |
| c: 86 / c: 87 | c: 86 (fuel servomotor) / c: 87 (air servomotor) The burner stops because a servomotor failed to reach its target position within tolerance or has an open circuit. | RED |
Satronic / Honeywell DKG 972 Gas Burner Control · 5 codes
| Code | What it means | Risk |
|---|---|---|
| 1 short + 1 long flash | Flash-Code: 1 short then 1 long pulse (internal fuse defect) The burner control locks out due to an internal fuse or control box defect. | YELLOW |
| 1 short + 2 long flashes | Flash-Code: 1 short then 2 long pulses (low mains voltage) The mains voltage dropped too low, causing the burner control box to lock out until voltage recovers. | GREEN |
| 1 short + 4 long flashes | Flash-Code: 1 short then 4 long pulses The burner control locks out because a flame was not established within the safety time limit. | RED |
| 2 short + 3 long flashes | Flash-Code: 2 short then 3 long pulses (stray light) The burner control locks out because it detects stray light during the monitored phase. | RED |
| 2 short + 8 long flashes | Flash-Code: 2 short then 8 long pulses (manual/external lockout) The burner control is in a manual or external lockout state, stopping the heating system. | RED |
Satronic / Honeywell DKO 970/972 Oil Burner Control · 5 codes
| Code | What it means | Risk |
|---|---|---|
| 1 short + 1 long flash | Flash-Code: 1 short then 1 long pulse (internal fuse defect) The oil burner control locks out due to an internal fuse or control box defect. | YELLOW |
| 1 short + 2 long flashes | Flash-Code: 1 short then 2 long pulses (low mains voltage) The mains voltage dropped too low, causing the burner control box to lock out until voltage recovers. | GREEN |
| 1 short + 4 long flashes | Flash-Code: 1 short then 4 long pulses The oil burner control locks out because a flame was not established within the safety time. | RED |
| 2 short + 3 long flashes | Flash-Code: 2 short then 3 long pulses (stray light) The oil burner control locks out because it detects stray light during the monitored phase. | RED |
| 2 short + 8 long flashes | Flash-Code: 2 short then 8 long pulses (manual/external lockout) The oil burner control is deliberately placed into a manual or external lockout state, stopping operation. | RED |
Satronic / Honeywell MMI 810.1 / 811.1 Gas Burner Safety Control · 1 codes
| Code | What it means | Risk |
|---|---|---|
| Reset button lamp lit (lockout) | Illuminated reset pushbutton A fault condition occurred due to an air pressure or flame signal issue, which locks out the burner. | RED |
Satronic / Honeywell TFI 812 Gas Burner Control Box · 1 codes
| Code | What it means | Risk |
|---|---|---|
| Reset button lamp lit (lockout) | Illuminated reset button The burner control enters a safety lockout due to a missing flame, weak flame signal, or low voltage, stopping the burner. | RED |
Siemens LME2x / Ecoflam E-BCU Gas Burner Control · 7 codes
| Code | What it means | Risk |
|---|---|---|
| 2 blinks | Red LED: 2 blinks The burner locks out because no flame was established by the end of the ignition safety time. | RED |
| 3 blinks | Red LED: 3 blinks The air pressure switch is faulty or welded in the normal position, which locks out the burner. | RED |
| 4 blinks | Red LED: 4 blinks The burner locks out because extraneous light was detected when the system was starting up. | RED |
| 5 blinks | Red LED: 5 blinks The air pressure switch timed out because it is welded in the working position, which locks out the burner. | RED |
| 7 blinks | Red LED: 7 blinks The burner locks out because the flame was lost too many times during normal operation. | RED |
| 10 blinks | Red LED: 10 blinks A wiring error or internal fault occurred with the output contacts, which locks out the burner. | RED |
| 14 blinks | Red LED: 14 blinks The valve closed position indicator contact is not closed, which causes the gas burner control to fault and stop operating. | RED |
Siemens LME7 Series Burner Control · 11 codes
| Code | What it means | Risk |
|---|---|---|
| Loc 2 | No establishment of flame at the end of safety time The Siemens flame safeguard locks out the burner because a flame was not established at the end of the safety time. | RED |
| Loc 4 | Extraneous light The Siemens flame safeguard locks out the burner because it detects extraneous light inside the combustion chamber. | RED |
| Loc 7 | Loss of flame The Siemens flame safeguard locks out the burner because the flame was lost during operation. | RED |
| Loc 10 | Error not relatable (application), internal error The Siemens flame safeguard locks out the burner due to an internal application error that cannot be related to a specific fault. | RED |
| Loc 14 | POC error The Siemens flame safeguard locks out the burner due to a proof of closure error. | RED |
| Loc 22 | Safety loop open The Siemens flame safeguard locks out the burner because the safety loop is open. | RED |
| Loc 60 | Analog power source 4 to 20 mA, I < 4 mA The Siemens flame safeguard locks out the burner because the analog power source dropped below four milliamps. | RED |
| Loc 83 | Faulty PWM fan The Siemens flame safeguard locks out the burner because it detects a faulty pulse width modulation fan. | RED |
| Loc 139 | No program module detected The Siemens flame safeguard locks out the burner because it cannot detect the required program module. | RED |
| Loc 206 | AZL2 incompatible The Siemens flame safeguard locks out the burner because an incompatible display module is connected. | RED |
| Loc 225 | Faulty PWM fan The Siemens flame safeguard locks out the burner due to a faulty pulse width modulation fan. | RED |
Siemens LMG Gas Burner Control (Bentone STG) · 8 codes
| Code | What it means | Risk |
|---|---|---|
| 2 blinks | Red LED: 2 blinks The burner locks out because no flame was established by the end of the safety time. | RED |
| 3 blinks | Red LED: 3 blinks The air pressure monitor does not close, which prevents the burner from operating. | RED |
| 4 blinks | Red LED: 4 blinks The air pressure monitor does not open or extraneous light is present, which locks out the burner. | RED |
| 5 blinks | Red LED: 5 blinks Extraneous light was detected during the pre purging cycle, which causes the gas burner control to fault and stop operating. | RED |
| 7 blinks | Red LED: 7 blinks The burner locks out because the flame was lost while the system was operating. | RED |
| 18 blinks | Red LED: 18 blinks The air pressure monitor opened during prepurging or operation, which locks out the burner. | RED |
| 19 blinks | Red LED: 19 blinks A faulty output contact was detected, which causes the gas burner control to fault and stop operating. | RED |
| 20 blinks | Red LED: 20 blinks The burner locks out because the control unit experienced an internal device fault. | RED |
Siemens LMO14/24 Oil Burner Control · 5 codes
| Code | What it means | Risk |
|---|---|---|
| 2 flashes | Red LED: 2 flashes The burner locks out because no flame signal was established by the time the safety period expired. | RED |
| 4 flashes | Red LED: 4 flashes The burner locks out because false light was detected while the system was starting up. | RED |
| 7 flashes | Red LED: 7 flashes The burner locks out because the flame was lost three times during normal operation. | RED |
| 8 flashes | Red LED: 8 flashes The burner locks out because the oil preheater failed to reach its cutoff temperature within ten minutes. | RED |
| 10 flashes | Red LED: 10 flashes The burner locks out because of incorrect wiring, an internal fault, or two faults occurring simultaneously. | RED |
Weishaupt W-FM 200 Combustion Manager · 16 codes
| Code | What it means | Risk |
|---|---|---|
| 23 | Loc.c 23 / Err.c 23 The burner locks out because extraneous light was detected during the startup sequence. | RED |
| 24 | Loc.c 24 / Err.c 24 The burner locks out because extraneous light was detected during the shutdown sequence. | RED |
| 25 | Loc.c 25 / Err.c 25 The burner locks out because no flame was present at the end of the safety time. | RED |
| 26 | Loc.c 26 / Err.c 26 The burner locks out because the flame failed while the system was in operation. | RED |
| 27 | Loc.c 27 / Err.c 27 The air pressure switch sent an impermissible ON signal, which locks out the burner. | RED |
| 28 | Loc.c 28 / Err.c 28 The air pressure switch sent an impermissible OFF signal, which locks out the burner. | RED |
| 29 | Loc.c 29 / Err.c 29 The fan contactor sent an impermissible ON signal, which locks out the burner. | RED |
| 2A | Loc.c 2A / Err.c 2A The fan contactor sent an impermissible OFF signal, which locks out the burner. | RED |
| 2B | Loc.c 2B / Err.c 2B The flue gas recirculation air pressure switch sent an impermissible ON signal, which locks out the burner. | RED |
| 2C | Loc.c 2C / Err.c 2C The flue gas recirculation air pressure switch sent an impermissible OFF signal, which locks out the burner. | RED |
| 2D | Loc.c 2D / Err.c 2D The burner locks out because there is an impermissible on signal at the gas start release input. | RED |
| 2E | Loc.c 2E / Err.c 2E The burner locks out because there is an impermissible off signal at the gas start release input. | RED |
| 2F | Loc.c 2F / Err.c 2F The low gas pressure switch has reacted, which prevents the burner from operating. | RED |
| 30 | Loc.c 30 / Err.c 30 The high gas pressure switch has reacted, which prevents the burner from operating. | RED |
| 31 | Loc.c 31 / Err.c 31 The burner locks out because the valve proving test detected a leaking first valve or an unopened second valve. | RED |
| 32 | Loc.c 32 / Err.c 32 The burner locks out because the valve proving test detected a leaking second valve or an unopened first valve. | RED |
White-Rodgers 50E47-843 Hot Surface Ignition · 7 codes
| Code | What it means | Risk |
|---|---|---|
| OFF | OFF An internal failure has occurred, causing the ignition control to shut down the burner completely. | YELLOW |
| Red 1 Flash | Red 1 Flash The maximum number of ignition retries was exceeded, forcing the burner into a lockout state. | RED |
| Red 2 Flash | Red 2 Flash The maximum number of ignition recycles was exceeded, forcing the burner into a lockout state. | RED |
| Red Solid On | Red Solid On A miswired gas valve or internal error was detected, causing the burner to lock out. | RED |
| Red Rapid Flash | Red Rapid Flash A flame was sensed when none was expected, forcing the control into a lockout state. | RED |
| Green Rapid Flashing | Green Rapid Flashing A weak flame signal is detected, which can cause the burner to drop out unexpectedly. | GREEN |
| Yellow Rapid Flashing | Yellow Rapid Flashing Improper electrical polarity was detected, preventing the ignition control from operating the burner system safely. | YELLOW |
Gas detectors
Honeywell Sensepoint XCD Gas Detector · 20 codes
| Code | What it means | Risk |
|---|---|---|
| F-01 | F-01 The gas detector has an internal communication failure, causing the monitoring equipment to stop working. | YELLOW |
| F-02 | F-02 The gas detector has experienced a cell failure, causing the monitoring equipment to stop working. | YELLOW |
| F-03 | F-03 The gas detector has experienced a significant zero drift, causing the monitoring equipment to fault. | YELLOW |
| F-04 | F-04 An unexpected sensor is fitted in the gas detector, causing the monitoring equipment to fault. | YELLOW |
| F-05 | F-05 The gas detector memory is corrupted, causing the monitoring equipment to stop working. | YELLOW |
| F-06 | F-06 The gas detector supply voltage is too low, causing the monitoring equipment to shut down. | YELLOW |
| F-07 | F-07 The gas detector has an SRS processor failure, causing the monitoring equipment to stop working. | YELLOW |
| F-08 | F-08 The gas detector has a memory read or write fault, causing the monitoring equipment to fail. | YELLOW |
| F-09 | F-09 The gas detector information memory is corrupted, causing the monitoring equipment to stop working. | YELLOW |
| F-10 | F-10 The gas detector code memory is corrupted, causing the monitoring equipment to stop working. | YELLOW |
| F-11 | F-11 The gas detector has an output failure, causing the monitoring equipment to stop working. | YELLOW |
| F-12 | F-12 The gas detector has a heater failure, causing the monitoring equipment to stop working. | YELLOW |
| F-13 | F-13 The gas detector has a supplied voltage failure, causing the monitoring equipment to stop working. | YELLOW |
| W-01 | W-01 The gas detector requires calibration to function properly, triggering a warning on the monitoring equipment. | GREEN |
| W-02 | W-02 The transmitter temperature limits were exceeded, triggering a warning on the gas detection monitoring equipment. | GREEN |
| W-03 | W-03 The gas detector alarm setting needs configuration, preventing the monitoring equipment from operating correctly. | GREEN |
| W-04 | Over-range warning The gas detector has an over-range warning, meaning the equipment detects levels beyond its normal scale. | RED |
| W-05 | W-05 The gas detector sensor is switched off to prevent deterioration, meaning it will not monitor the booth. | RED |
| Alarm 1 | 1st alarm icon blinking The gas concentration has reached the first alarm threshold, causing the detector to trigger a warning. | RED |
| Alarm 2 | 2nd alarm icon blinking The gas concentration has reached the second alarm threshold, causing the detector to trigger a warning. | RED |
Industrial Scientific Radius BZ1 Area Monitor · 15 codes
| Code | What it means | Risk |
|---|---|---|
| OR | Positive over-range event The area monitor detects a positive over-range gas event, causing the instrument to trigger an alarm. | RED |
| -OR | Negative over-range A negative over-range event occurred on the gas detector, triggering an alarm in the area. | GREEN |
| 408 | System error The area monitor has a critical system error, meaning the instrument will not be operational until it is resolved. | YELLOW |
| ERR | Sensor error The area monitor sensor has a data fault or is incompatible, causing the sensor to fail. | YELLOW |
| OFF | Sensor off The sensor setting is turned off, which makes the sensor nonoperational and unable to monitor gas. | GREEN |
| TWA | TWA event The area monitor has reached the time-weighted average limit for gas exposure, causing the instrument to trigger an alarm. | RED |
| STEL | STEL event The area monitor has reached the short-term exposure limit for gas, causing the instrument to trigger an alarm. | RED |
| MAN DOWN | Peer man down The area monitor indicates a peer man down alarm, meaning a worker may be in distress. | RED |
| Peer Lost | Peer Lost Warning A peer instrument is no longer communicating with the group, causing the area monitor to trigger a warning. | GREEN |
| Alarms off | Alarms off The audible and visual alarms have been turned off in the settings, which prevents the monitor from alerting personnel. | GREEN |
| Group Lost | Group Lost Warning The instrument is no longer communicating with the group, causing the area monitor to trigger a warning. | GREEN |
| LEL-Low O2 | LEL-Low O2 The oxygen concentration is insufficient for the combustible gas sensor, causing it to lose functionality. | RED |
| Low battery | Low battery warning The area monitor has a low battery warning, meaning the instrument will shut down in about thirty minutes. | GREEN |
| No GPS Signal | No GPS Signal The area monitor cannot obtain its GPS coordinates, meaning location tracking will not function. | GREEN |
| Low Battery Shutdown | Critical low battery The area monitor has a critical low battery, causing the instrument to shut down completely. | YELLOW |
MSA ULTIMA X5000 Gas Monitor · 39 codes
| Code | What it means | Risk |
|---|---|---|
| LOC | LOC The gas monitor measured a combustible sensor over range condition, causing the instrument to alarm. | RED |
| ACT Fault | ACT Fault The gas monitor has an out of range measurement, causing the instrument to fault. | YELLOW |
| Lamp Fault | Lamp Fault The gas monitor sensor lamp is not operating properly, causing the instrument to fault. | YELLOW |
| Over Range | Over Range The gas monitor detects an over scale gas reading, causing the instrument to trigger an alarm. | RED |
| Relay Fault | Relay Fault The gas monitor has detected a problem with the relays, causing the output switching to fail. | YELLOW |
| EEPROM Fault | EEPROM Fault The gas monitor has a memory error, causing the instrument to fault and stop working. | YELLOW |
| Channel Error | Channel Error The gas monitor has an error in the output system, causing the signal transmission to fail. | YELLOW |
| Unknown Error | Unknown Error The gas monitor sensor is returning an unknown error condition, causing the instrument to fault. | YELLOW |
| Negative Drift | Negative Drift The gas monitor sensor is reading downscale, meaning the instrument will provide inaccurate gas measurements. | YELLOW |
| Sensor Missing | Sensor Missing The gas monitor sensor is no longer detected, causing the instrument to fault and stop reading. | YELLOW |
| Beads Off Fault | Beads Off Fault The combustible sensor beads are turned off, which prevents the monitor from detecting gas. | YELLOW |
| Sensor RAM Error | Sensor RAM Error The gas monitor sensor detected a bad memory location, causing the instrument to fault. | YELLOW |
| Reference Failure | Reference Failure The gas monitor has an out of range measurement, causing the instrument to fault. | YELLOW |
| TEDS CRC-16 Error | TEDS CRC-16 Error The gas monitor sensor datasheet is invalid, causing the instrument to fault. | YELLOW |
| Low Signal Failure | Low Signal Failure The gas monitor sensor output is low, causing the instrument to fault and read inaccurately. | YELLOW |
| RAM Checksum Fault | RAM Checksum Fault The gas monitor detected a bad memory location, causing the instrument to fault. | YELLOW |
| Sensor FLASH Error | Sensor FLASH Error The gas monitor has a sensor program error, causing the instrument to fault. | YELLOW |
| Configuration Fault | Configuration Fault The gas monitor has detected an incorrect configuration, causing the instrument to fault. | YELLOW |
| Sensor Heater Fault | Sensor Heater Fault The gas monitor sensor heater is not working properly, causing the instrument to fault. | YELLOW |
| Calibration Required | Calibration Required The gas monitor sensor requires calibration, meaning it will not read gas levels accurately until completed. | YELLOW |
| Flash Checksum Fault | Flash Checksum Fault The gas monitor has an incorrect main circuit board program, causing the instrument to fault. | YELLOW |
| General System Error | General System Error A gas monitor internal power supply is out of range, causing the instrument to fault. | YELLOW |
| Sensor Element Error | Sensor Element Error The gas monitor sensor is broken, causing the instrument to fault and stop detecting gas. | YELLOW |
| Supply Voltage Fault | Supply Voltage Fault The gas monitor input power supply is out of range, causing the instrument to fault. | YELLOW |
| Life and Health Fault | Life and Health Fault The gas monitor sensor is at the end of its life, causing the instrument to fault. | YELLOW |
| Negative Supply Fault | Negative Supply Fault The gas monitor negative power supply is out of range, causing the instrument to fault. | YELLOW |
| Sensor Internal Fault | Sensor Internal Fault The gas monitor has a hardware issue in the sensor, causing the instrument to fault. | YELLOW |
| Internal Circuit Fault | Internal Circuit Fault The gas monitor has a hardware failure on the main circuit board, causing it to fault. | YELLOW |
| Parameter out of range | Parameter out of range A gas monitor setting is improperly configured, causing the instrument to fault. | YELLOW |
| Span Calibration Fault | Span Calibration Fault The gas monitor sensor failed the span calibration operation, causing the instrument to fault. | YELLOW |
| Zero Calibration Fault | Zero Calibration Fault The gas monitor sensor failed the zero calibration operation, causing the instrument to fault. | YELLOW |
| Parameter Fault (Sensor) | Parameter Fault (Sensor) A gas monitor sensor setting is improperly configured, causing the instrument to fault. | YELLOW |
| Sensor End of Life Fault | Sensor End of Life Fault The gas monitor sensor has reached the end of its life, causing the instrument to fault. | YELLOW |
| Sensor Configuration Reset | Sensor Configuration Reset The sensor datasheet was cleared to factory defaults, which requires the monitor to be configured again. | YELLOW |
| Diffusion Supervision Fault | Diffusion Supervision Fault The gas monitor sensor has detected a blockage in the gas path, causing the instrument to fault. | YELLOW |
| Sensor Supply Voltage Fault | Sensor Supply Voltage Fault The gas monitor sensor input voltage is out of range, causing the instrument to fault. | YELLOW |
| External Memory Access Error | External Memory Access Error The gas monitor had an error communicating with its memory, causing the instrument to fault. | YELLOW |
| Both side green LEDs blinking | Gas value is still shown. The gas monitor recommends a calibration, meaning the instrument will display a warning. | GREEN |
| External Memory Checksum Error | External Memory Checksum Error The gas monitor memory is not valid, causing the instrument to fault and stop working. | YELLOW |
RKI Eagle / Eagle 2 Multi-Gas Detector · 9 codes
| Code | What it means | Risk |
|---|---|---|
| TWA | TWA (appears next to the gas reading) The time weighted average exposure limit for gas was reached, triggering flashing LEDs, a pulsing buzzer, and an activated backlight. | RED |
| BATT | BATT (appears vertically along the left side of the LCD) The battery voltage is low, leaving only one to two hours of operating time without triggering an audible alarm. | YELLOW |
| OVER | OVER (appears next to the gas reading, reading at full scale) A gas reading exceeded the sensor full scale range, triggering rapidly flashing LEDs, a fast pulsing buzzer, and an activated backlight. | RED |
| STEL | STEL (appears next to the gas reading) The short term exposure limit for gas has been reached, triggering flashing LEDs, a pulsing buzzer, and an activated backlight. | RED |
| ALRM1 | ALRM1 (appears next to the gas reading) A target gas concentration crossed the low alarm threshold, triggering flashing LEDs, a pulsing buzzer, and an activated backlight. | RED |
| ALRM2 | ALRM2 (appears next to the gas reading) A target gas concentration crossed the high alarm threshold, triggering rapidly flashing LEDs, a fast pulsing buzzer, and an activated backlight. | RED |
| FAILED SENSOR(S) | FAILED SENSOR(S) (failed sensor indicated; reading becomes XXX) One or more sensors have failed, changing the gas reading to an error display and triggering double pulsing alarms. | YELLOW |
| FAIL LOW FLOW LEVEL | FAIL LOW FLOW LEVEL The sample flow rate became too low for safe operation, triggering visual and audible alarms on the gas detector. | YELLOW |
| RECHARGE INSTRUMENT BATTERIES | RECHARGE INSTRUMENT BATTERIES (replaces gas readings) The battery voltage is too low for operation, shutting down gas monitoring functions and triggering double pulsing visual and audible alarms. | YELLOW |
Temperature controllers
FutureDesign MCT4 Multi-Loop Controller / HMI · 8 codes
| Code | What it means | Risk |
|---|---|---|
| #4 | "tagname" outputs 1 and 2 incorrectly configured. The first and second outputs of the named control are in an invalid configuration, preventing proper operation. | GREEN |
| #26 | Auto tune failed for "tagname". The auto tune process failed to execute for the named control loop. | GREEN |
| #29 | "tagname" EEPROM failure The internal memory in the named loop or limit control failed, preventing the system from operating correctly. | YELLOW |
| #30 | "tagname" cold junction failure The cold junction compensation in the named loop or limit control failed, stopping accurate temperature readings. | YELLOW |
| #40 | "tagname" A to D converter failure The analog to digital converter in the named loop has failed, which terminates any running ramp or soak process. | YELLOW |
| COMM_ERROR | Communications error with "tagname". Check cable. A communications error occurred with the named control, causing a loss of connection to the system. | GREEN |
| DATA_FILE_SD | Data file error. SD card full or missing. A data file error occurred because the memory card is full or missing, stopping data logging. | GREEN |
| SENSOR_BREAK | "tagname" sensor break A sensor break was detected on the named control, which terminates any running ramp or soak process. | YELLOW |
Honeywell UDC2500 Digital Controller · 10 codes
| Code | What it means | Risk |
|---|---|---|
| 01 | Illegal Function The received message is not an allowable action, preventing the addressed device from executing the command. | YELLOW |
| 02 | Illegal Data Address The referenced data address is not valid, which stops the addressed device from processing the communication message. | YELLOW |
| 03 | Illegal Data Value The value referenced at the addressed device location is out of range, causing the command to fail. | YELLOW |
| 04 | Slave Device Failure The addressed device cannot process a valid message due to a bad state, halting communication with the controller. | YELLOW |
| 07 | NAK, Negative Acknowledge The addressed device cannot process the current message, which prevents the system from executing the requested action. | YELLOW |
| 09 | Buffer Overflow The requested data exceeds the available buffer space, causing the controller communication to fail. | YELLOW |
| LOCK | LOCK The lockout feature is enabled, which prevents unauthorized changes to certain functions or parameters on the controller. | GREEN |
| 05, 06 | Slave Device Busy The controller cannot communicate because the addressed slave device rejected a message due to being busy. | GREEN |
| PV LIM | PV LIM The process value is out of range, which causes the controller to stop regulating the booth environment. | GREEN |
| EE FAIL | EE FAIL The controller is unable to write to its memory, meaning any parameter changes will not be accepted or saved. | YELLOW |
Omron E5CC Temperature Controller · 3 codes
| Code | What it means | Risk |
|---|---|---|
| e111 | E111 The temperature controller has a memory error, causing the heating system to stop working. | YELLOW |
| e333 | E333 The temperature controller has an analog to digital converter error, causing the heating system to fail. | YELLOW |
| s.err | S. Err The temperature controller has an input error, causing the heating system to stop working. | YELLOW |
Partlow MIC 2000 Temperature Controller · 6 codes
| Code | What it means | Risk |
|---|---|---|
| Hi | Hi (Input more than 10% Over Span) The input signal is more than ten percent above the top of the selected input span, which causes the outputs to turn off. | YELLOW |
| Lo | Lo (Input more than 10% Under Span) The input signal is more than ten percent below the bottom of the selected input span, which causes the outputs to turn off. | YELLOW |
| Er 3 | Er 3 (EPROM Checksum Failure) A checksum test of the program memory has failed due to corrupted data, which stops the controller from operating. | YELLOW |
| Er 4 | Er 4 (RTD Mismatch Error) The input reading does not match calibration, resulting in a mismatch error on the controller. | YELLOW |
| SnSr | SnSr (Sensor Break or out of range) The instrument input sensor is open or reading outside its acceptable range, which causes the proportional and on off outputs to turn off. | YELLOW |
| Er 11 | Er 11 (Cold Junction Compensation Error) The cold junction reference sensor used for thermocouple compensation is not reading correctly, causing a compensation error. | YELLOW |
Watlow EZ-ZONE Temperature Controller · 9 codes
| Code | What it means | Risk |
|---|---|---|
| ---- | ---- (four dashes in upper display) A sensor failure has occurred, causing dashes to appear instead of the process value on the upper display. | YELLOW |
| OpEn | OpEn (Input Error i.Er value = Open) The analog input is open, triggering an active error input message on the controller. | YELLOW |
| shrt | shrt (Input Error i.Er value = Shorted) The analog input is shorted, triggering an active error input message on the controller. | YELLOW |
| AL.E1 | AL.E1 (Alarm Error 1) The alarm is in an error state and cannot be evaluated due to a lost or faulty sensor input. | YELLOW |
| AL.L1 | AL.L1 (Alarm Low 1, toggling with Attn) The process value has dropped to or below the low alarm setpoint, triggering an active attention message. | GREEN |
| AL.h1 | AL.h1 (Alarm High 1, toggling with Attn) The process value has reached or exceeded the high alarm setpoint, triggering an active attention message. | GREEN |
| Er.i1 | Er.i1 (Error Input 1, toggling with Attn message) An input error is active on the attention parameter, meaning a specific sensor or calibration fault is present. | YELLOW |
| vaL.L | vaL.L (value too low to display, less than -1999) The process value is less than negative 1999 and is too low to be shown on the four digit display. | GREEN |
| vaL.h | vaL.h (value too high to display, greater than 9999) The process value is greater than 9999 and is too high to be shown on the four digit display. | GREEN |
Watlow F4T Controller · 19 codes
| Code | What it means | Risk |
|---|---|---|
| Low | Low The measured current has dropped below the low set point, causing the controller to halt the equipment. | GREEN |
| Fail | Fail The controller stops operating because a critical measurement failure has occurred within the system. | YELLOW |
| High | High The measured current has exceeded the high set point, which causes the controller to shut down the equipment. | GREEN |
| Open | Open The controller stops the heating process because a temperature sensor is broken or disconnected. | YELLOW |
| Error | Error The controller issues an error because a required file transfer did not complete successfully. | GREEN |
| Shorted | Shorted The controller stops the heating process because a temperature sensor has failed or shorted out. | YELLOW |
| Open Loop | Open Loop The process value has not responded to the loop outputs as expected, causing the controller to halt the operation. | YELLOW |
| RTD Error | RTD Error The controller stops the heating process because an error has occurred with the RTD temperature sensor. | YELLOW |
| Math Error | Math Error A controller calculation has no defined result, causing the system to halt its current process. | YELLOW |
| Stale Data | Stale Data Data from another controller is unavailable, causing the booth control system to lose communication. | GREEN |
| Not Sourced | Not Sourced The controller cannot process data because an input signal is missing or not connected to a function block. | YELLOW |
| Server Down | Server Down The controller loses network communication because the connection from the client to the server is missing. | GREEN |
| Need Host IP | Need Host IP The controller cannot connect to the network because the required IP address is missing. | GREEN |
| Ambient Error | Ambient Error The controller may fail because the surrounding ambient temperature is outside of its safe operating range. | YELLOW |
| Bad Calibration | Bad Calibration The controller will not function accurately because it has not been properly calibrated. | YELLOW |
| Reversed Sensor | Reversed Sensor The process value changed in the opposite direction than expected during heating or cooling, causing the system to stop. | YELLOW |
| Measurement Error | Measurement Error The controller cannot operate properly because an internal measurement error has occurred. | YELLOW |
| Need Host Name and IP | Need Host Name and IP The controller is missing a host name or IP address, which prevents network communication with the booth. | GREEN |
| Check Directory Permissions, Host Name and IP Address | Check Directory Permissions, Host Name and IP Address A file transfer failed due to directory or network issues, preventing the controller from updating its data. | GREEN |
Booth maker panels
Garmat USA booth panel · 4 codes
| Code | What it means | Risk |
|---|---|---|
| GARMAT_MOTOR_RED_LIGHT | NOTHING WORKS. (TOUCH SCREEN ON AND A RED MOTOR LIGHT IS ON) A motor overload or loss of phase occurred, which stops all booth operations while leaving the touch screen on. | RED |
| GARMAT_TEMP_HIGH_SPRAY | TEMPERATURE TOO HIGH DURING SPRAY MODE The temperature controller is in the wrong mode, causing the booth to get too hot during spray operations. | GREEN |
| GARMAT_BURNER_RED_LIGHT | TEMPERATURE DOES NOT RISE. (BURNER RED LIGHT IS ON) The burner locked out on the flame safeguard, preventing the booth temperature from rising. | RED |
| GARMAT_TOUCHSCREEN_DARK | NOTHING WORKS. (TOUCH SCREEN DARK) The booth has lost control power, causing the touch screen to go dark and stopping all operations. | YELLOW |
Global Finishing Solutions booth panel · 68 codes
| Code | What it means | Risk |
|---|---|---|
| 1 | FIRE PROTECTION TRIPPED The fire alarm input is indicating an active alarm condition, stopping the booth. | RED |
| 2 | E-STOP PRESSED The emergency stop was pushed or has faulty wiring, which immediately shuts down the booth. | RED |
| 3 | EXHAUSET VFD OL FAULT The exhaust drive lost its run status or failed to indicate it was running after receiving a run command. | RED |
| 4 | INTAKE VFD OL FAULT The intake drive lost its run status or failed to indicate it was running after receiving a run command. | RED |
| 5 | DRIVE COMMUNICATIONS FAULT A motor drive has lost communication with the programmable logic controller, stopping operation. | RED |
| 6 | BURNER AIR NOT FLOWING The burner airflow switch failed to prove airflow or unexpectedly lost its proven status. | RED |
| 7 | BURNER FAIL TO START The burner failed to light due to an issue with the relay wiring or airflow request. | RED |
| 8 | FLAME FAILURE The flame safety relay has an alarm, which locks out the burner and stops the booth. | RED |
| 9 | BURNER GAS PRESSURE FAULT The system detected low or high gas pressure, which locks out the burner and stops the booth. | RED |
| #2 | Estop Pressed An emergency stop button is pressed, which immediately shuts down the booth equipment. | RED |
| #4 | Fire Alarm Active The fire alarm input is active, which shuts down the booth for safety. | RED |
| 10 | BURNER HIGH TEMP LIMIT FAULT The burner became too hot and tripped the high temperature switch, shutting down the heat. | RED |
| 11 | BOOTH NEGATIVE PRESSURE The booth has developed negative pressure, which stops the equipment from operating safely. | RED |
| 12 | EXHAUST VFD ALARM The exhaust drive lost its run status due to an internal error, blown fuse, or wiring fault. | RED |
| 13 | INTAKE VFD ALARM The intake drive lost its run status due to an internal error, blown fuse, or wiring fault. | RED |
| 14 | AMU IN TEST The air makeup unit service switches are currently in the on position, preventing normal operation. | GREEN |
| 15 | EXHAUST AIR FLOW FAULT The exhaust fan stopped running due to faulty hardware, broken belts, or a wiring issue. | RED |
| 16 | FAIL TO REACH TEMP IN CURE MODE The booth failed to reach the target temperature during the cure mode, which interrupts the curing process. | RED |
| 17 | TEMPERATURE PROBE FAULT The temperature probe is not reading, which prevents the booth from monitoring heat levels. | RED |
| #29 | Internal Software Error An internal software error occurred, preventing the booth control panel from operating normally. | RED |
| F01 | Emergency Stop The emergency stop pushbutton was pressed or has faulty wiring, which immediately shuts down the booth. | RED |
| F02 | Negative Pressure Limit The booth pressure feedback has exceeded the set negative pressure limit, which stops the booth from operating. | RED |
| F03 | Low Temperature Limit The temperature feedback dropped below forty degrees for five minutes while the booth was operating. | YELLOW |
| F04 | Fire Supp Type Config The fire suppression system is not configured in the maintenance settings, preventing normal operation. | RED |
| F05 | Exhaust Low Air Flow The exhaust fan drive indicated it was running, but the airflow switch failed to prove airflow within the required time. | RED |
| F06 | Recirc Damper Position The recirculation damper failed to indicate a closed position while the booth was operating. | YELLOW |
| F07 | Recirc Fresh Air Ratio Insufficient fresh air was introduced during the cure cycle, which causes the booth to fault. | RED |
| F08 | Fresh Air Damper Position The fresh air damper failed to indicate an open position while the booth was operating. | RED |
| F09 | Burner Flame Failure The flame safety relay has triggered an alarm, indicating a burner flame failure. | RED |
| F10 | Intake Motor Run Feedback The intake drive lost its run status or failed to indicate it was running after receiving a run command. | YELLOW |
| F11 | Exhaust Motor Run Feedback The exhaust drive lost its run status or failed to indicate it was running after receiving a run command. | RED |
| F12 | Intake Damper Position The intake damper failed to indicate an open position while the booth was operating outside of cure mode. | RED |
| F13 | Burner Air Flow The burner airflow switch failed to prove airflow within the set time or unexpectedly lost its proven status. | RED |
| F33 | Fire Alarm The fire alarm input is indicating an active alarm condition because the okay signal was lost. | RED |
| W01 | Over Temperature The booth temperature exceeded the setpoint plus the over temperature tolerance for the programmed time, triggering a warning. | RED |
| W02 | Under Temperature The booth temperature dropped below the setpoint minus the under temperature tolerance for the programmed time, triggering a warning. | GREEN |
| W03 | Burner Unlit The burner failed to ignite within the set time or unexpectedly lost its flame, causing the heating system to fault. | RED |
| W04 | Burner Air Flow The burner airflow switch failed to prove airflow within the set time or unexpectedly lost its proven status. | GREEN |
| W05 | Recirc Damper Position The recirculation damper failed to indicate a closed position, triggering a warning level alert. | GREEN |
| W06 | Fresh Air Damper Position The fresh air damper failed to indicate an open position, triggering a warning level alert. | GREEN |
| W07 | I/O Force(s) Active An input or output is currently being forced on the programmable logic controller, triggering a warning. | RED |
| W08 | Fan Service Switch Detected The fan service switch is currently in the on position at the air makeup unit. | GREEN |
| W09 | Burner Service Switch Detected The burner service switch is currently in the on position at the air makeup unit. | GREEN |
| W10 | Man Door Open The personnel door remained open longer than the allowed time delay while the booth was operating. | RED |
| W11 | Product Door Open The product door was opened while the booth was actively operating, triggering a warning. | RED |
| W12 | Man Door Open The personnel door was opened during the cure cycle, which interrupts the process and requires an interface acknowledgement to put the booth back into cure mode. | RED |
| W13 | Prod Door Open The product door was opened during the cure cycle, which interrupts the process and requires an interface acknowledgement to put the booth back into cure mode. | RED |
| W14 | Light Lens Loop A light lens is loose or has been removed, which prevents the booth from operating. | RED |
| W15 | Intake Dirty Filter The intake filter is indicating it is dirty and restricting airflow. | GREEN |
| W16 | REVO Power Rail Low Pressure The power rail is not adequately pressurized to keep overspray out, which stops the booth from running. | GREEN |
| W17 | REVO Unit not at home position The unit is not at its home position while the booth is operating outside of flash mode. | GREEN |
| W18 | REVO Door Open The unit doors are open while the booth is operating outside of flash mode. | GREEN |
| W19 | REVO Power Rail On The power rail indicates it is powered when not commanded on, triggering a system warning. | RED |
| W20 | Cure Timer Forced Start The temperature feedback failed to reach the required tolerance within ten minutes of entering cure or after a door was opened, forcing the timer to start. | GREEN |
| W21 | Intake Damper Position The intake damper failed to indicate an open position before the warning delay timer expired. | GREEN |
| W22 | Cure Aborted The burner flame was lost during the cure cycle, which causes the cure process to abort. | RED |
| #x032 | Burner Box # - Purge Interlock Relay malfunction The purge interlock relay on the numbered burner box malfunctioned, preventing the burner from starting. | RED |
| #x448 | Burner Box # - Burner - Flame Failure The numbered burner box failed to prove flame, causing the burner to lock out. | RED |
| #x449 | Burner Box # - Burner - Purge Timeout The numbered burner box timed out during the purge cycle, which stops the burner and interrupts the flame safety sequence. | RED |
| #x450 | Burner Box # - Burner - Flame Lost The numbered burner box lost its flame during operation, causing the burner to shut down. | RED |
| #x451 | Burner Box # - Burner - Burner Unextinguished The numbered burner box detected a flame when it was supposed to be off, triggering a safety lockout. | RED |
| #x452 | Burner Box # - Burner - Low Gas Pressure The numbered burner box detected low gas pressure, which locks out the burner. | RED |
| #x453 | Burner Box # - Burner - High Gas Pressure The numbered burner box detected high gas pressure, which locks out the burner. | RED |
| #x455 | Burner Box # - Burner - High Temperature Limit Tripped The high temperature limit on the numbered burner box tripped, shutting down the burner to prevent overheating. | RED |
| DELUXE_DIRTY_FILTER | Dirty Filter The booth filters are loaded with overspray, which disables the air solenoid valve. | GREEN |
| DELUXE_FIRE_SYSTEM_FAULT | Fire System Fault The fire alarm input indicates an active alarm condition, which shuts down the booth. | RED |
| DELUXE_VENTILATION_FAULT | Ventilation Fault A variable frequency drive faulted, which stops the ventilation fans from running. | RED |
| DELUXE_AIR_SOLENOID_DISABLED | Air Solenoid Valve Disabled/No Compressed Air The air solenoid valve is disabled due to a lack of compressed air or an open safety interlock, stopping painting operations. | GREEN |