In summer, every card friend can't leave the air conditioner. If the air-conditioner happens to be malfunction, it is difficult to drive in the "oven", and it is easy to have adverse effects on the safety of driving. Now let's take a look at the common causes of air conditioning without refrigeration, and timely troubleshooting.

First, the cooling effect of the condenser backlog is not good

North Ben V3 parts condenser (also known as air conditioning radiator) installed in front of the engine, usually open the front cover can be seen. The dust, sediment, mosquitoes and leaves in the transit, the common catkins and poplar in the northern spring are easily covered in the condenser, and the heat dissipation is not good after a long time accumulation.

Generally speaking, the new pipe and parts of the new car within 2-3 years are not easy to fail. The way to solve the problem is also very simple. Condensers are relatively inexpensive. When washing cars, they can clean up most impurities with air guns or water guns.

Two. The effect of air conditioning filter dust backlog 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 to ensure good air quality in the vehicle. Long term operation of vehicles naturally can not avoid backlog of dust. The main performances are as follows: 1. the air conditioning has light noise, and the air volume is very small; 2. air conditioning odor. Generally speaking, 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, it is necessary to advance the time appropriately.

Three, leakage of refrigerant in pipeline and connecting parts

There are many parts of the automobile air conditioning. The connected hose and connecting parts can not be aged and loose after a long time of high temperature and bump, which can lead to the leakage of refrigerant and the air conditioner is not refrigerated. In addition to the timely replacement and fastening of nuts, we also need to isolate the North Ben V3 fittings hoses from the engine and other components so as to avoid being damaged again. Many teachers are very experienced. It is very effective to wrap up and fix the lines before the new car runs.

Four, compressor and expansion valve failure timely repair to 4S

Compressor can be compared to the heart of air conditioning, play the role of compression and transmission of refrigerant neatly, common failures are: 1. North V3 parts compressor internal parts abnormal wear and tear, produce obvious noise; 2. transmission belt skidding, no transmission power and so on. Expansion valve, also known as throttle valve, is mainly used to create conditions for refrigerant evaporation and control refrigerant flow. At this point, we should go to the professional service points and 4S shops for maintenance and treatment, so as to avoid greater losses.

Now the air conditioner has almost become the mark of each car, and our truck is running on the road in the night and on the other day, and the occasional malfunction is unavoidable, but as long as we develop a good habit of using the car, the probability of a sudden failure is still low. We should also know more about their vehicle configuration, to find out the reasons for failure, to avoid the human cloud, and to lead to unnecessary parts replacement costs, after all, this is the money that is earned by the threat of health. Finally, in the hot summer, I hope you can use air-conditioning and refrigeration as much as possible. A small amount of fuel saved is no more important than health.