What are the reasons for the Ford Everest's air conditioning not being cool?

[Marcus]

There are several reasons why a car's air conditioning may not be cool: 1. Too much refrigerant: This can lead to a decrease in cooling performance. Excessive impurities in the refrigerant and compressor oil can cause minor blockages, resulting in insufficient cooling. 2. Insufficient refrigerant: A lack of refrigerant leads to inadequate cooling. A dirty condenser or a loose compressor drive belt can also cause the air conditioning to not cool properly. 3. Excessive impurities in the refrigerant and compressor oil: Minor blockages can occur, leading to insufficient cooling. If there are too many impurities in the refrigerant and compressor oil throughout the entire air conditioning system, the filter screen in the filter will inevitably become clogged. This reduces the refrigerant's flow capacity, increases resistance, and decreases the amount of refrigerant flowing to the expansion valve, resulting in insufficient cooling.