What is the reason why the BYD Qin's air conditioner only blows air but does not cool?
2 Answers
Reasons why the air conditioner only blows air but does not cool: Insufficient refrigerant: This leads to an insufficient amount of refrigerant in the air conditioning system's pipelines, resulting in reduced pressure and less heat being removed, making it feel like the air conditioner is only blowing air without cooling. In this case, you need to observe through the sight glass above the dryer. During normal operation of the air conditioner, if there are continuous, slow bubbles in the sight glass, it indicates insufficient refrigerant. If obvious bubble flipping is observed, it means the refrigerant is severely insufficient. Excessive refrigerant: There is a required proportion of refrigerant in the air conditioning system. If the proportion is too high, it can affect heat dissipation. Similarly, if too much cooling oil is added during maintenance, it can also reduce the heat dissipation capacity of the cooling system. Aging or loose belt: If the drive belt of the car's air conditioning compressor is loose, the compressor may slip during operation, leading to reduced transmission efficiency. This causes the compressor's speed to drop, reducing the delivery of compressed refrigerant, which results in the car's air conditioner not cooling.
With years of experience in automotive repair, I've encountered the issue of BYD Qin's air conditioning blowing air without cooling quite frequently. The most common cause is refrigerant leakage, preventing the compressor from starting. A dirty or clogged condenser or a faulty fan can also lead to this situation, where air flows but the temperature doesn't drop. Checking the fuse is the quickest step—sometimes it's just blown, and replacing it can solve the problem. If the compressor isn't making any noise, it's necessary to inspect the electrical circuit or relay issues. The air conditioning system in the BYD Qin is quite stable, but neglecting regular maintenance can lead to clogged filters, resulting in poor cooling performance. I recommend cleaning the air conditioning filter every six months and regularly topping up the refrigerant to avoid unexpected breakdowns. Ignoring this issue can damage the compressor, leading to more expensive repairs. Driving without air conditioning in summer affects comfort, especially on long trips, which can be distracting. It's safer and more cost-effective to visit a professional workshop for diagnosis early on, ensuring peace of mind and savings.
