MHI · Air Conditioning
The compressor's rotor is locked, meaning it cannot spin. This is a serious mechanical or electrical fault within the compressor.
Click steps to track your progress.
Turn off the air conditioner immediately at the main circuit breaker.
Ensure the outdoor unit is clear of any debris or foreign objects that could physically obstruct the fan or compressor area.
Contact a qualified service technician, as this problem indicates a major internal component failure requiring professional repair.