What Are the Reasons for Poor Cooling Effect of Car Air Conditioning?

1 Answers
McLucas
07/29/25 6:13pm
Here are the reasons for the poor cooling effect of car air conditioning: 1. Clogged air filter: A clogged air filter results in reduced airflow. Although the air is cool enough, insufficient airflow makes it feel like the cooling is inadequate. Replacing the air filter can solve this issue. 2. Excessive dust in the evaporator box: It is generally recommended to replace the air filter twice a year—once in winter and once in summer. The air conditioning system should be cleaned once every one or two years, depending on usage frequency, preferably in summer. There is no need to clean the heating system in winter. 3. Dirty condenser: The condenser, located in front of the radiator, is used to dissipate heat from the refrigerant. It can often get clogged with debris such as lint, leading to poor heat dissipation and reduced cooling performance. 4. Insufficient refrigerant: If the refrigerant level in the air conditioning system is low, the pressure decreases, reducing the amount of heat removed and resulting in inadequate cooling. 5. Faulty components in the air conditioning system: Damaged compressor, expansion valve, etc., require inspection and repair at a 4S shop.
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