Why does the air conditioning in a new car only cool when the car is running?

1 Answers
Aliyah
07/25/25 2:42am
The reasons why the air conditioning in a new car only cools when the car is running: 1. Insufficient refrigerant; 2. Expansion valve blockage or evaporator coil blockage; 3. Condenser coil blockage or excessively high system temperature, resulting in poor cooling performance; 4. Leakage in the air conditioning system pipeline; 5. Insufficient pressure in the air conditioning compressor; 6. Blown air conditioning fuse, damaged wiring, short circuit, or poor connector contact. Solutions for the issue of air conditioning only cooling when the car is running: 1. Strengthen maintenance of air conditioning system components, ensure the condenser coil surface is clean to guarantee heat dissipation efficiency; 2. Check the system pressure to confirm the refrigerant charge level and whether the pipeline is unobstructed; 3. Inspect the fuse and connectors to ensure they are functioning properly.
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