Mitsubishi Electric · MSZ-AP Air Conditioners
The upper lamp of the indoor unit's Operation Indicator blinks three times in a pattern. This signals an issue with the indoor fan motor, which is responsible for circulating air within the room.
Click steps to track your progress.
Turn OFF the main power supply to the air conditioner.
Check for any physical obstructions around the indoor unit's fan blades or air vents.
Ensure the unit is clean and air filters are not excessively clogged, which could overwork the fan motor.
Turn the main power supply back ON. If the blinking continues and the fan does not operate, contact a qualified technician to inspect the indoor fan motor.