Every driver driving in the summer is inseparable from the air conditioner. If the air conditioner is faulty, driving in the "oven" is uncomfortable, and it is easy to adversely affect driving safety. Let's take a look at the common causes of air conditioning not cooling, and troubleshoot in time.

1. The condenser impurity backlog heat dissipation is not good

The condenser (also known as the air conditioning radiator) is installed in front of the engine and can be seen by simply opening the front cover. Dust, silt, mosquitoes and leaves in the middle of transportation, and the common catkins, poplars and other impurities in the northern spring are easily covered in the condenser. After a long time of accumulation, the heat dissipation effect is not good.

In general, new car piping and parts are not prone to failure within 2-3 years, and the air conditioning is not cooled. The solution to the problem is also very simple. The condenser is relatively inexpensive. It can clean most of the impurities with an air gun or a water gun when washing the car.

2, Air conditioning filter dust accumulation pressure ventilation is not good

The air-conditioning filter mainly filters dust and catkins in the air to prevent impurities from entering the air-conditioning system and causing damage, and to ensure good air quality in the car. The long-term operation of the vehicle naturally avoids the accumulation of dust, and the performance status mainly includes: 1. The air conditioner has noise, and the air volume is extremely small; 2. The air conditioner has an odor. In general, it is more appropriate to replace the air-conditioning filter element for 3 months. If it is a harsh environment such as a construction site or a mining area, the time should be advanced.

3, the pipeline and connecting parts are damaged. The refrigerant leaks.

There are many auto air conditioning parts, and the connected hoses and connecting parts can not avoid aging and loosening after a long time of high temperature, bumps and other factors, resulting in refrigerant leakage, and the air conditioner is not cooled. In addition to timely replacement and tightening of the joint nut, we must also isolate the hose from the engine and other parts to avoid damage. Many masters are very experienced. It is indeed very effective to do the dressing and fixing work of the line in time before the new car is operated.

4, the compressor and expansion valve failure Timely to 4S maintenance

The compressor is comparable to the heart of the air conditioner, and functions to compress and transport the refrigerant. The common faults are as follows: 1. The internal parts of the compressor are abnormally worn and produce obvious noise; 2. The conveyor belt slips and does not transmit power. Expansion valve, also known as throttle valve, is mainly used to create conditions for refrigerant evaporation and control refrigerant flow. At this point, you should go to a professional service point, 4S shop for maintenance and repair, to avoid causing greater losses.

Nowadays, air conditioners are almost standard on every car, and our trucks are running on the road day and night. Occasionally, glitch is inevitable, but as long as we develop good habits, the chance of sudden failure is still Relatively low. Everyone should also know more about their vehicle configuration. Whenever a failure occurs, try to find the reason, avoid people, and cause unnecessary parts replacement. After all, this is the hard-earned money earned from the threat of physical health. Finally, in the hot summer, I hope that everyone will use air conditioning and cooling as much as possible. The small fuel cost saved is not more important than good health.