What Causes Poor Cooling in Car Air Conditioning?

[Stevie]

There are several reasons why a car's air conditioning may not cool properly: 1. Excessive refrigerant, which reduces cooling efficiency. If the refrigerant or compressor oil contains too many impurities, minor blockages can occur, leading to insufficient cooling capacity. 2. Insufficient refrigerant, which directly results in inadequate cooling. A dirty condenser or a loose compressor drive belt can also cause the air conditioning to underperform. 3. Excessive impurities in the refrigerant or compressor oil can cause minor blockages, reducing cooling capacity. If there are too many contaminants in the refrigerant or compressor oil throughout the entire air conditioning system, the filter screen will inevitably become clogged. This restricts refrigerant flow, increases resistance, and reduces the amount of refrigerant reaching the expansion valve, ultimately leading to insufficient cooling capacity.