How to Determine if a Car's Air Conditioning Compressor is Faulty?
2 Answers
After turning on the car's air conditioning cooling switch, if the cooling effect deteriorates and the engine speed does not increase, it can be determined that the compressor has a problem. The following is a related introduction about the air conditioning compressor: 1. The reasons for air conditioning compressor damage include: damage to the compressor valve plate; damage to the compressor cylinder head gasket; damage or deformation of the compressor exhaust valve; presence of foreign objects in the compressor exhaust valve gasket. 2. The compressor is the heart of the car's air conditioning refrigeration system, playing the role of compressing and transporting refrigerant vapor. Compressors are divided into two types: fixed displacement and variable displacement. According to different working principles, air conditioning compressors can be divided into fixed displacement compressors and variable displacement compressors.
In my over ten years of driving experience, identifying a faulty car AC compressor is quite straightforward. If the air from the vents isn't cold or the temperature doesn't drop after turning on the AC, the compressor might have stopped working. For example, last summer, I suddenly noticed the car was extremely hot while driving. Upon opening the hood, I heard a strange grinding noise from the compressor area, and it turned out the belt was slipping, causing the compressor to fail. When the compressor isn't rotating, you can press the AC switch and check if the round clutch in the engine compartment moves; if it doesn't, it's a compressor issue. Also, check if the refrigerant has leaked, as this can cause incorrect system pressure. If the AC works intermittently or shuts down completely, avoid forcing it on to prevent damage to other components like the condenser. Remember to maintain the AC system regularly to prevent early aging of the compressor.
