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What Are the Reasons for Car Air Conditioning Not Cooling on High Plateaus?

1 Answers

SanMiguel

07/29/25 2:34pm

Reasons for car air conditioning not cooling on high plateaus: 1. Insufficient or low refrigerant: A common reason for car air conditioning not cooling is insufficient or low refrigerant, which is likely caused by minor leaks. 2. Excessive refrigerant: Too much refrigerant can also cause the air conditioning to not cool, as the proportion of refrigerant in the air conditioning system must meet specific requirements. If the proportion is too high, it can affect heat dissipation. Similarly, adding too much cooling oil during maintenance can also reduce the heat dissipation of the refrigeration system. 3. Loose drive belt of the car air conditioning compressor: Car cooling relies on refrigerant, and refrigerant transmission depends on the air conditioning compressor. The drive belt is a crucial moving part that drives the compressor. If the drive belt is loose, the compressor may slip during operation, reducing transmission efficiency, lowering the compressor's speed, and decreasing the delivery of compressed refrigerant, leading to the air conditioning not cooling. 4. Substandard refrigerant and refrigeration oil: Excessive impurities in the refrigerant and refrigeration oil can clog the car air conditioning's filter, causing the air conditioning to not cool. This increases resistance and reduces the flow of refrigerant to the expansion valve, resulting in insufficient cooling capacity. 5. Moisture infiltration in the refrigeration system: If moisture enters the car air conditioning refrigeration system, it can cause insufficient cooling or no cooling at all.

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