What are the reasons and solutions for car air conditioning not cooling?

2 Answers
MarleyLee
07/28/25 10:29pm
Reasons and solutions for car air conditioning not cooling: 1. After prolonged use, the refrigerant in the car air conditioning may deplete, leading to insufficient cooling and affecting the air conditioning performance. In this case, adding some air conditioning refrigerant can help; 2. If there is a refrigerant leak, both the internal and external units of the car air conditioning will operate normally but without cooling effect. Check the air conditioning pipelines, air conditioning pump, condenser, and evaporator components for any damage causing the refrigerant leak, and replace the faulty parts if necessary; 3. If the car air conditioning is not cleaned after prolonged use, various impurities may cover the condenser, preventing it from dissipating heat properly. This can result in excessive pressure and temperature in the air conditioning system, causing the air conditioning pump to stop cooling. Use a high-pressure water gun to clean the condenser fins and then dry them with a high-pressure air gun; 4. A dirty air filter can block the air conditioning filter, obstructing most of the cold air and making the cooling effect less noticeable, which may be mistaken for the car air conditioning not cooling. Therefore, it is important to regularly clean or replace the filter.
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AdelineDella
08/12/25 2:59am
When the car air conditioning is not cooling, the most common issue is insufficient refrigerant, which may be due to a slow leak; or the air conditioning compressor is broken and cannot turn; if the filter is dirty, the air won't come out. The solution is to first check the refrigerant level, and if it's low, recharge it with refrigerant; then check the filter, and replace it if it's dirty. If there's a problem with the compressor, you should find a professional technician to fix it, as trying to do it yourself can easily cause issues. Regular maintenance can prevent these problems, such as cleaning the air conditioning system every six months. Test the air conditioning before driving in summer, so you're not caught off guard by the heat. Regular checks can save a lot on repair costs and improve comfort. In short, address small issues promptly to avoid them turning into big problems.
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