Mitsubishi Heavy Industries · Air Conditioners
The system initiated a 'current safe stop' during operation, specifically when the compressor speed was 30 rps or under. This suggests problems with refrigerant levels, airflow, or key sensors.
Click steps to track your progress.
Check that the outdoor unit has sufficient space around it and good ventilation, ensuring inlet and outlet airflow are not blocked by debris or other obstructions.
Inspect the outdoor air temperature sensor for proper function and connection.
Verify the refrigerant amount in the system and adjust it to the proper level if it is found to be insufficient or overcharged.
If the problem persists after checking ventilation, sensors, and refrigerant, the compressor or outdoor unit PCB may be faulty and require professional inspection.