What is the Problem if Changan Auto Air Conditioner is Not Cooling?

[ColinDella]

Specific reasons why Changan Auto air conditioner is not cooling: 1. Insufficient or low refrigerant: It may be caused by a small refrigerant leak. You can observe it from the sight glass on the dryer tank. When the air conditioner is running normally, if there are continuous and slow bubbles in the sight glass, it indicates insufficient refrigerant. If obvious bubble flipping occurs, it indicates severe refrigerant shortage. In this case, simply adding refrigerant will solve the problem. 2. Loose drive belt of the car air conditioner compressor: If the drive belt is loose, the compressor will slip during operation, leading to reduced transmission efficiency and decreased compressor speed. This results in reduced refrigerant compression and delivery, causing the car air conditioner to not cool. If the compressor drive belt is too loose, it should be tightened. If it cannot be turned by hand, it means the drive belt is too tight and should be loosened slightly. If tightening is ineffective or the drive belt shows cracks, aging, or other damage, a new drive belt should be replaced.

[LeRonan]

When the air conditioning in my Changan car suddenly stops cooling, I first check if the simplest parts are causing the issue, such as ensuring the AC switch is set correctly and whether the fan is running normally. If the fan is still working but there's no cold air, it might be due to insufficient refrigerant—a common issue with Freon leaks. The compressor is also crucial as it circulates the refrigerant; if it's aged or seized, it can completely fail. Additionally, don’t forget to inspect the fuse box—look for a small component similar to the headlight fuse, as a blown fuse can halt operation. Poor wiring connections can also be a hidden issue; loose plugs or short circuits can cause malfunctions. I recommend trying a DIY approach first by using a pressure gauge to test the refrigeration system's pressure. However, if it seems too complicated, it’s better to take it to a 4S shop for a comprehensive diagnosis to avoid safety risks during summer driving. Regular maintenance, such as replacing the cabin air filter periodically, can prevent many problems.

[LeLuke]

My Changan car's air conditioning has stopped cooling after just two years of use. I suspect it might be due to insufficient Freon needing a refill, especially if it hasn't been serviced before. If the compressor is broken, the situation would be more severe with no cooling at all. The fuse is another common issue, prone to overheating and blowing. Also, if the air filter is clogged, reduced airflow might be mistakenly perceived as lack of cooling. I recommend first checking the fault codes in the manual or simply testing the airflow and air temperature. If there's no improvement, seek professional repair promptly to prevent minor issues from escalating. Additionally, turning on the air conditioning in advance during hot weather can extend its lifespan and reduce such failures.

[NadiaFitz]

When I was driving, the Changan air conditioning wasn't cooling. I've encountered similar situations before. Common causes include refrigerant leakage requiring recharge, or compressor failure. Check if the fuses are intact and whether there are any issues with the wiring connections. A dirty filter can also affect cooling efficiency. It's recommended to address the issue promptly to avoid discomfort during summer drives. Finding a reliable repair shop will save you a lot of hassle.