Danfoss VLT HVAC Drive FC 102
Danfoss VLT HVAC Drive FC 102 code 12: Torque limit
The drive warns that the motor torque has exceeded the programmed limit for either motor or generator mode.
- Code
- 12
- Name
- Torque limit
- Controller
- Danfoss VLT HVAC Drive FC 102
- Type
- Motor overload
- 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 1 common cause 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 12 mean?
The drive warns that the motor torque has exceeded the programmed limit for either motor or generator mode.
Is Danfoss VLT HVAC Drive FC 102 code 12 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 12?
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
8 · DC undervoltage9 · Inverter overload10 · Motor overload temperature11 · Motor thermistor over-temp13 · Overcurrent14 · Ground fault15 · Hardware mismatch16 · Short-circuit17 · Control word timeout18 · Start failed
All 73 Danfoss VLT HVAC Drive FC 102 codes · Every fault code