The compressor fails, what should be done?
1) Switch protection: Reset the ATS, rectify short circuits, and restart the compressor.
2) If the contactor cannot work properly, check that the cables are connected correctly and the contactor is normal. Replace the contactor if it is faulty.
3) If the compressor is faulty, check its winding resistance and continuity, diagnose the fault, and contact Huawei technical support.