Mitsubishi Electric · FR-E500 Inverter
This indication appears when the inverter's internal cooling fan stops operating due to a fault or operates in a manner inconsistent with the setting of Pr. 244 'cooling fan operation selection'. A faulty cooling fan can lead to inverter overheating and subsequent shutdowns.
Click steps to track your progress.
Visually inspect the cooling fan for physical damage, obstructions, or debris that might prevent its rotation.
Verify the setting of Pr. 244 (cooling fan operation selection) to ensure it aligns with the expected fan operation (e.g., continuous, stop/start).
If the fan is physically damaged or non-functional, replace the cooling fan with an authorized spare part.