Danfoss VLT HVAC Drive FC 102
Danfoss VLT HVAC Drive FC 102 code 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.
- Code
- 26
- Name
- Brake resistor power limit
- 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
- Which manufacturer manual it comes from, linked
- 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 26 mean?
The drive issues a warning or trips because the dissipated braking energy has exceeded the safe power limit of the brake resistor.
Is Danfoss VLT HVAC Drive FC 102 code 26 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 26?
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
18 · Start failed23 · Internal fan fault24 · External fan fault25 · Brake resistor short-circuit27 · Brake chopper fault28 · Brake check failed29 · Heatsink temp30 · Motor phase U missing31 · Motor phase V missing32 · Motor phase W missing
All 73 Danfoss VLT HVAC Drive FC 102 codes · Every fault code