What are the reasons for the Volkswagen car air conditioner not cooling?
1 Answers
Reasons for Volkswagen car air conditioner not cooling: 1. Insufficient or too little refrigerant: A common reason for the car air conditioner not cooling is insufficient or too little refrigerant, which is likely caused by minor leaks. 2. Too much refrigerant: Excessive refrigerant can also cause the air conditioner not to cool, as there is a required proportion of refrigerant volume in the air conditioning system. 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 conditioner compressor: Car refrigeration relies on refrigerant, and refrigerant transmission depends on the air conditioner compressor, with the drive belt being a crucial moving part that drives the compressor. If the drive belt is loose, the compressor may slip during operation, leading to reduced transmission efficiency, lower compressor speed, decreased refrigerant delivery, and ultimately causing the car air conditioner not to cool. 4. Substandard refrigerant and freezing oil: Excessive impurities in the refrigerant and freezing oil can clog the car air conditioner's filter, increasing resistance and reducing 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 conditioner refrigeration system, it can cause insufficient cooling or no cooling at all.
