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What to Do When the Car Air Conditioner Isn't Cooling Well?

1 Answers

NoraAnn

07/30/25 8:13am

If your car air conditioner isn't cooling well, here are the solutions: 1. First, check if the air vent temperature is normal. Typically, the air vent temperature should be around 10 degrees Celsius. If it's higher than 13 degrees Celsius, it indicates poor cooling performance, which may be due to low refrigerant levels in the air conditioning system. In this case, simply recharge the system with refrigerant. 2. If the air vent temperature is normal, the most likely causes are a dirty air filter or evaporator. When these components become dirty, the airflow decreases. To fix this, replace the air filter and clean the evaporator. Additional Information: To recharge the car air conditioner with refrigerant, connect the refrigerant gauge to the air conditioning system and perform a vacuum process, choosing low-pressure vacuuming. Generally, there's no need to monitor the negative pressure value during vacuuming—three minutes of vacuuming is sufficient. After the time is up, tighten the low-pressure gauge switch and proceed to connect the refrigerant canister for refilling.

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