Mitsubishi Electric Thermal Overload / Overheating Protection Cycling

Unit runs for a few minutes then shuts off; can be restarted after a short time.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Clogged air filter, failing fan motor, blocked condenser coil, high ambient temperature, failing compressor drawing high current

Safety: Unplug before cleaning or opening the unit.

Steps:

Clean filter and coils: Wash the air filter and vacuum dust from the evaporator and condenser.
Check fan speed: Ensure the fan runs strongly at all speeds. If it slows or stops before shutdown, replace the indoor fan motor.
Ventilation: Move the unit away from walls and heat sources to improve airflow.
Technician: If the compressor is overheating or drawing excessive current, a technician should test and possibly replace the compressor or main PCB.

Hard 4/5

Indoor Fan Motor / Compressor

Check Price on Amazon

We may earn a commission from links on this page.