Mitsubishi Electric · MSZ-FH Air Conditioners
The indoor and outdoor units do not operate. This symptom occurs when the AIR PURIFYING power remains ON and cannot be turned OFF, even after attempting to disable it via the remote controller.
Click steps to track your progress.
Press the PURIFIER button on the remote controller again to ensure the command was sent.
Turn OFF the main power supply to the air conditioner.
Wait for a few minutes, then turn the main power supply back ON.
If the error persists, contact a qualified service technician.
Refer to manual section 10-6 ('Check of AIR PURIFYING power') for specific diagnostic steps for technicians.