Mitsubishi Heavy Industries · Air Conditioners
The indoor unit's fan motor is detected to be running at 300 min-1 or lower speed while the air conditioner is operating and the fan motor is commanded to be ON.
Click steps to track your progress.
Turn off the main power to the unit.
Inspect the indoor fan motor and fan blades for any obstructions (debris, dirt buildup) that might be preventing it from rotating freely and remove them.
Check the electrical connections to the indoor fan motor for any looseness or damage.
Manually check if the fan blade spins freely without power.
If the fan motor is unobstructed and connections are sound, the indoor fan motor or indoor PCB may be faulty and require professional service.