What are the reasons for a car's air conditioning not cooling and only blowing air?

1 Answers
RowanAnn
07/29/25 8:53am
The reasons for a car's air conditioning not cooling and only blowing air are: 1. There is an issue with the refrigerant in the car's air conditioning system; 2. Excessive impurities in the air conditioning refrigerant and compressor oil can clog the filter screen, affecting cooling efficiency, increasing resistance, and reducing the flow of refrigerant to the expansion valve, leading to the air conditioning not cooling; 3. There is a dryer in the car's air conditioning refrigeration system, whose main task is to absorb moisture from the refrigerant and prevent excessive moisture from reducing cooling capacity. When the desiccant in the dryer is saturated, moisture can no longer be filtered out; 4. The compressor's drive belt is too loose, reducing the condenser's heat dissipation capacity, which leads to a decrease in the air conditioning's cooling performance.
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