Danfoss VLT HVAC Drive FC 102
Danfoss VLT HVAC Drive FC 102 code 11: Motor thermistor over-temp
The drive issues a warning or alarm indicating that the motor thermistor is disconnected or too hot.
- Code
- 11
- Name
- Motor thermistor over-temp
- Controller
- Danfoss VLT HVAC Drive FC 102
- Type
- Over temperature
- What it does
- Fault: the equipment trips and stops
- Risk
- YELLOW Booth plays by its own rules
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated November 4, 2026
How to fix it
Subscribers get:
- What to do next, in plain words
- What the manual says to do, and the page it is on
- The 3 common causes listed for this code
- The step by step check for this problem, one check at a time
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Danfoss VLT HVAC Drive FC 102 code 11 mean?
The drive issues a warning or alarm indicating that the motor thermistor is disconnected or too hot.
Is Danfoss VLT HVAC Drive FC 102 code 11 dangerous?
It is graded yellow: not hard, but a booth does it differently than the gear most techs know, so follow the checks in order.
How do I fix Danfoss VLT HVAC Drive FC 102 code 11?
The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.
Other Danfoss VLT HVAC Drive FC 102 codes
7 · DC overvoltage8 · DC undervoltage9 · Inverter overload10 · Motor overload temperature12 · Torque limit13 · Overcurrent14 · Ground fault15 · Hardware mismatch16 · Short-circuit17 · Control word timeout
All 73 Danfoss VLT HVAC Drive FC 102 codes · Every fault code