What are the reasons for the Wuling Hongguang's air conditioning not cooling?
2 Answers
The reasons for the Wuling Hongguang's air conditioning not cooling are refrigerant leakage, internal damage to the air conditioning pump, and excessively dirty condenser fins. Refrigerant leakage: The refrigerant in the air conditioning system leaks, resulting in no refrigerant, so the air conditioning does not cool. You can check whether components such as the pipelines in the air conditioning system, the air conditioning pump, the condenser, and the evaporator are damaged, leading to refrigerant leakage. Another method is to add fluorescent dye along with the refrigerant. After using the vehicle, inspect the air conditioning system with a specialized fluorescent lamp. If there is a leak, the point will glow, indicating that the component is damaged. Internal damage to the air conditioning pump: For example, damage to the piston rings inside the air conditioning pump or damage to the clutch plate. This causes the air conditioning pump to fail to operate, thus preventing the cooling effect. Generally, a damaged air conditioning pump will produce abnormal noises. Check the air conditioning pump, and if it is damaged, it needs to be replaced. Excessively dirty condenser fins: If the condenser fins in the air conditioning system are too dirty, it can cause the pressure and temperature in the air conditioning system to rise too high. To protect the air conditioning system, the air conditioning pump stops working, so the air conditioning does not cool. While driving, the vehicle's speed can be used to help dissipate heat from the air conditioning system, so the air conditioning system will cool when the vehicle is moving. You can use a high-pressure water gun to clean the condenser fins and then dry them with a high-pressure air gun.
I've repaired quite a few Wuling Hongguang vehicles, and there are many reasons why the air conditioning may not be cooling. The most common issue is insufficient refrigerant. After prolonged use, the pipes or connections may leak refrigerant, so you should check for oil stains or damage points. If the compressor is broken, it won't turn on, and you won't hear the compressor starting when you turn on the AC. A dirty condenser, covered in dust or with blocked cooling fins, can't dissipate heat, resulting in poor cooling. A loose or aged fan belt can also lead to insufficient cooling and affect the AC performance. Additionally, a clogged air filter is very common—it can't filter dust, reducing airflow. You can simply remove and replace it yourself. Electrical issues, such as a blown fuse or poor switch contact, can also be the cause. I recommend starting with the filter and refrigerant checks. If that doesn't work, take it to a professional shop for a thorough inspection. Driving without AC in summer can cause fatigue, so safety should always come first.
