25 · FC 301/302 · WARNING
For 25, model / series is FC 301/302; type is WARNING; brand is Danfoss; fault name is Brake resistor short circuit; corrective action is • Remove the power to the frequency converter and replace the brake resistor (refer to parameter 2-15 Brake Check), verified against its source on 2026-10-10.
- Brand
- Danfoss
- Model / series
- FC 301/302
- Fault code
- 25 verified
- Fault name
- Brake resistor short circuit verified
- Type
- WARNING verified
- Cause
- The brake resistor is monitored during operation. If a short circuit occurs, the brake function is disabled and the warning appears. The frequency converter is still operational, but without the brake function. verified
- Corrective action
- • Remove the power to the frequency converter and replace the brake resistor (refer to parameter 2-15 Brake Check). verified
What the source says
WARNING 25, Brake resistor short circuit
— files.danfoss.com, retrieved 2026-09-01
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Cause
The brake resistor is monitored during operation. If a short circuit occurs, the brake function is disabled and the warning appears. The frequency converter is still operational, but without the brake function.
Corrective action
• Remove the power to the frequency converter and replace the brake resistor (refer to parameter 2-15 Brake Check).
— all from files.danfoss.com, retrieved 2026-09-01
Source
- files.danfoss.comhttps://files.danfoss.com/download/Drives/MG33MO22.pdf