Why is the car air conditioning not cooling when turned on?

2 Answers
Antonio
08/28/25 2:53am
The reasons why the car air conditioning is not cooling when turned on are: 1. Lack of refrigerant (Freon); 2. Dirty evaporator coil; 3. Malfunction in the air conditioning system; 4. Excessive impurities in the refrigerant or refrigeration oil, causing blockages; 5. Dirty condenser, leading to reduced heat dissipation capacity; 6. Dirty air filter, odors, or blockages. The solutions to fix a car air conditioning that is not cooling are: 1. Clean the condenser; 2. Repair or replace the compressor; 3. Add air conditioning refrigerant; 4. Adjust the belt tension. The maintenance methods for car air conditioning are: 1. Choose the appropriate air conditioning temperature; 2. Control the direction of the air vents; 3. Avoid running the air conditioning for too long; 4. Avoid smoking while using the air conditioning; 5. Avoid using the air conditioning at low speeds; 6. Turn off the air conditioning before shutting down the engine.
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SanCorbin
09/09/25 8:14am
As a car owner, I often encounter the issue of the air conditioning not being cool enough. Typically, insufficient refrigerant is the main culprit. You need to check the system for leaks and measure it with a pressure gauge. Additionally, a dirty or clogged air filter can block airflow, so it should be cleaned or replaced regularly—I recommend changing it every six months. Another possible issue is a faulty compressor; if you hear unusual noises or it stops working, you should have a mechanic take a look. If the fan isn't spinning, it can also affect cooling—pop the hood and check if the fan is running. Pro tip: Roll down the windows for a few minutes before turning on the AC to cool the car faster. If you can't fix it yourself, head to a professional shop right away to avoid suffering in the summer heat.
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