99 · FC 301/302 · ALARM
For 99, model / series is FC 301/302; type is ALARM; brand is Danfoss; fault name is Locked rotor; cause is The rotor is blocked, verified against its source on 2026-10-10.
- Brand
- Danfoss
- Model / series
- FC 301/302
- Fault code
- 99 verified
- Fault name
- Locked rotor verified
- Type
- ALARM verified
- Cause
- The rotor is blocked. verified
What the source says
ALARM 99, Locked rotor
— files.danfoss.com, retrieved 2026-09-01
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
Cause
The rotor is blocked.
— all from files.danfoss.com, retrieved 2026-09-01
Source
- files.danfoss.comhttps://files.danfoss.com/download/Drives/MG33MO22.pdf