What Are the Repair Methods for a Car Air Conditioner Not Cooling?

1 Answers
Gideon
07/29/25 5:50pm
Car air conditioner not cooling repair methods are: check the compressor operation status, inspect the condenser and fan status, examine the blower fan operation status, check the refrigerant fluid level, verify if the HVAC valve or thermal control damper is closed, and ensure other damper adjustments are normal. Below are common car air conditioner faults: 1. Car air conditioner compressor: The compressor in the air conditioning system has a clutch, and the compressor only operates when the clutch is engaged. If the compressor is damaged and cannot switch to the engaged state, the air conditioner will not cool. If the refrigerant is sufficient but the air conditioner still does not cool at all, it may be due to the compressor stopping operation, and you should consider repairing or replacing the compressor. 2. Car air conditioner abnormal noise: If you notice unusual noises from the air conditioner, carefully identify where these noises are coming from. If the noise originates from inside the air conditioning system, it is usually due to air or moisture in the refrigerant, causing noise during refrigerant evaporation and expansion, and the driver may feel the sound coming from inside the dashboard. If the noise comes from outside the air conditioning system, it is typically due to abnormal noise from the compressor, which can be felt near the compressor. Air conditioner abnormal noises are mostly caused by air and moisture mixed in the refrigerant. 3. Ammonia leakage: When the driver turns on the air conditioner, a large amount of white, pungent gas may spray out from the air vents. This gas is vaporized refrigerant. This situation occurs due to a leak in the evaporator inside the dashboard, and the air conditioner evaporator inside the dashboard needs to be replaced.
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