The air conditioning compressor is a high speed rotating working part, the probability of failure is high. Common faults include noise, leakage and not working.
(1) heterophony. There are many reasons for the abnormal noise of the compressor. For example, the compressor electromagnetic clutch is damaged, or the internal wear of the compressor is serious, the lack of lubricating oil can produce different noise.
(2) leakage. Refrigerant leakage is the most common problem of air conditioning system. The leakage of the compressor is usually in the joint of the compressor and the high and low pressure pipe, which is usually difficult to check because of the installation position. The internal pressure of the air conditioning system is very high. When the refrigerant is leaking, the compressor lubricant will be lost, which will cause the air conditioning system not to work or the compressor is not well lubricated. The air conditioning compressor has the pressure relief valve, the pressure relief valve is usually disposable, and after the system pressure is too high to relieve pressure, the relief valve should be replaced in time.
(3) not working. Air conditioning compressors do not work for a number of reasons, usually because of the related circuit problems. It is possible to check whether the compressor is damaged by direct power supply to the electromagnetic clutch of the compressor.