InverterFR-F800Verification pending — cross-check with the official manual
FR-F800 FN — Fan alarm
Alarm — operational, inspection needed
CAUSE
Why does it occur?
- For the inverter that contains a cooling fan, "FN" appears on the operation panel when the cooling fan stops due to a fault, low rotation speed or different operation from the setting of Pr
- 244 "Cooling fan operation selection"
- Check the cooling fan for a failure
REMEDY · Step by step
How to fix it?
- The fan may be faulty
- Please contact your sales representative
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Mitsubishi Electric manual. For accurate and complete information, always consult the official manual.
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