What are the reasons for a car air conditioning compressor not working?
2 Answers
Reasons for a car air conditioning compressor not working: internal wear of the compressor or circuit system failure, it is recommended to promptly visit a 4S store for inspection and repair. More information about the air conditioning compressor is as follows: 1. The car air conditioning compressor is part of the car air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. 2. Air conditioning compressors can be divided into the following two types based on their working principles: 1. Fixed displacement compressor: The exhaust volume increases proportionally with the increase in engine speed, controlled by collecting temperature signals from the evaporator outlet and the air conditioning system pressure. 2. Variable displacement compressor: The exhaust volume automatically adjusts the power output according to the set temperature, controlled by changes in pressure signals within the air conditioning pipeline.
I've encountered situations where the air conditioning compressor wouldn't run. Common issues include low refrigerant levels or leaks, causing insufficient system pressure that triggers the protection switch to shut down automatically. Electrical problems are also crucial, such as blown fuses interrupting current flow or relay failures cutting off control signals. If the compressor itself is internally seized or the motor is burned out, it won't work at all. Other possibilities include slippage or breakage in the belt drive system, or temperature sensors sending erroneous shutdown commands. I recommend prioritizing checks on the refrigerant pressure gauge and fuse box, as these are easy places to identify problems. Timely repairs can prevent unbearable summer heat inside the car, and prolonged neglect may damage more components, doubling repair costs. Regular maintenance like cleaning the condenser and recharging refrigerant is very helpful.
