What are the reasons for the Buick Excelle's air conditioning not cooling?

[StValeria]

Buick Excelle's air conditioning not cooling reasons include refrigerant leakage, internal damage to the air conditioning pump, compressor damage, and excessively dirty condenser fins. Below are detailed explanations: Refrigerant Leakage: If the refrigerant in the air conditioning system leaks completely, there will be no refrigerant left, causing the air conditioning not to cool. Solution: Check for leaking components, add refrigerant along with fluorescent dye. Internal Damage to the Air Conditioning Pump: This results in the inability to initiate the cooling effect, and generally, a damaged air conditioning pump will produce abnormal noises. Solution: Inspect the air conditioning pump and replace it. Compressor Damage: When the compressor is damaged, it stops working or the pressure difference in the high and low-pressure pipelines becomes very small. This situation will cause the air conditioning not to cool. Solution: Check the compressor and replace it. Excessively Dirty Condenser Fins: This leads to excessively high pressure and temperature in the air conditioning system. To protect the system, the air conditioning pump stops working, resulting in the air conditioning not cooling. Solution: Use a high-pressure water gun to clean the condenser fins, then dry them with a high-pressure air gun.