Haier · Air Conditioning
The driver module has detected a failure in the compressor's startup sequence. This can be due to power supply issues, incorrect wiring, or problems with the power module or compressor itself, or system overload.
Click steps to track your progress.
Correct the wiring according to the diagram.
Ensure the electric box and compressor wiring are correct and firmly in place.
Check if the compressor is normal (test coil resistance and insulation).
Check if the power module is normal.
Replace the compressor.
Replace the power module.