What is an automatic AC compressor

The automatic air conditioning system has many components: automatic AC compressor, condenser, receiver dryer, evaporator, accessories and hoses. The automobile air-conditioning compressor is the “heart” of the automobile air-conditioning system. It works like a pump sucks in refrigerant (R-12 in old cars, R-134a in 1995 and newer cars) and pressurizes it, and then It is passed to the evaporator.


Automatic AC compressors have multiple moving parts (including pistons and valves). These internal parts may malfunction, causing the car air condtioner compressor to stop working. The internal parts of the compressor will usually fall apart and spread metal debris throughout the system. Therefore, when replacing the compressor, it is necessary to replace the orifice tube and the receiving dryer, because some debris may have accumulated there.

In order for the AC compressor to work properly, it needs a clutch, a bearing and an electrical connector. The clutch is driven by a drive/snake belt, which will engage the compressor when you turn on the AC power. The clutch may be burned or the bearing may be damaged. If the bearing or clutch fails, it is recommended to replace the compressor. Sometimes, replacing the entire compressor with a refurbished compressor is cheaper than replacing a single clutch or bearing.


It is also common for the seals in automotive AC compressors to deteriorate frequently. The compressor may start to leak refrigerant and/or AC oil. If the gasket is no longer fixed, you will need a new compressor because the gasket cannot be replaced. If there is sludge or debris in the air conditioning system, the compressor may also malfunction. If there is sludge or debris, flush the hose, evaporator and condenser to remove contaminants. If parts cannot be washed, they may need to be replaced.


Post time: Sep-28-2020