Why is the car air conditioning not cooling but not short of refrigerant?

[Grayson]

The reasons why the car air conditioning is not cooling but not short of refrigerant are as follows: 1. Quality and purity of refrigerant: The quality and purity of refrigerant play a crucial role in the operation of the car air conditioning system. Usually, inferior refrigerant will lead to low efficiency of the air conditioning system. 2. Condenser and radiator: The heat dissipation condition of the condenser and radiator will also affect the performance of the air conditioning. If not cleaned for a long time, the condenser and radiator may be covered by dust and debris. 3. Usage of refrigerant: Many car owners believe that the more refrigerant in the air conditioning system, the better. However, this is not the case. During the refrigerant charging process, the amount of refrigerant should be neither too much nor too little. Too little refrigerant will result in insufficient pressure in the air conditioning pipes, while too much will cause excessive pressure. In both cases, the air conditioning system cannot operate normally to provide cooling. 4. Quality of the expansion valve: The expansion valve is an important component in the refrigeration system, usually installed between the liquid storage tank and the evaporator. An inferior expansion valve will prevent the refrigerant from functioning as it should.