What are the reasons for a car's air conditioning suddenly not cooling?
1 Answers
Introduction to the reasons why a car's air conditioning is not cooling: 1. Insufficient or too little refrigerant. A common reason for a car's air conditioning not cooling is insufficient or too little refrigerant, which is likely caused by minor leaks. 2. Too much refrigerant. There are specific requirements for the proportion of refrigerant in the air conditioning system. If the proportion is too high, it can affect heat dissipation. 3. Loose drive belt of the car's air conditioning compressor. Car cooling relies on refrigerant, and refrigerant transmission depends on the air conditioning compressor. The drive belt is an important moving part that drives the compressor. If the drive belt is loose, the compressor may slip during operation, leading to reduced transmission efficiency, decreased compressor speed, and reduced refrigerant delivery, resulting in the air conditioning not cooling. If the compressor drive belt is too loose, it should be tightened. If it cannot be turned by hand, it indicates the belt is too tight and should be slightly loosened. 4. Substandard refrigerant and refrigeration oil. Excessive impurities in the refrigerant and refrigeration oil can clog the car's air conditioning filter, causing the air conditioning not to cool. This increases resistance and reduces the flow of refrigerant to the expansion valve, leading to insufficient cooling capacity. 5. Moisture infiltration in the refrigeration system. If moisture enters the car's air conditioning refrigeration system, it can cause insufficient cooling or no cooling at all.
