InverterFR-A800Verification pending — cross-check with the official manual
FR-A800 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
- When the cooling fan is replaced, check that the fan is not installed upsi
REMEDY · Step by step
How to fix it?
- Install the fan correctly. (Refer to page 835.) If the fan alarm still occurs after the fan is installed correctly, the fan may be faulty
- 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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