What should I do if the air conditioner in the car does not refrigerate?

In the summer, air conditioning is one of the must-have hardware for cars. Summer is a period of high incidence of car air conditioning failures. If your car's air conditioner suddenly strikes under the scorching sun, you may want to enjoy the "free sauna".

Therefore, car owners who neglect to take care of their cars should carry out certain maintenance of air conditioners. Generally, in the case of poor air conditioning in the car air conditioner, we have to check whether the belt of the car air conditioner is loose, loosening will cause the car compressor to work abnormally, in addition, we must check whether the electronic fan of the air conditioner is working, if the work is not good, the electronic fan will dissipate heat, which also leads to the abnormal operation of the air conditioning system, and also check whether the refrigerant (refrigerant) refrigerant is enough, we can use a professional refrigerant filling machine to check the working condition of the high-pressure pipe or low-pressure pipe. We can use the feel to check the temperature of the general high-pressure pipe is a little hot, if the low-pressure pipe has a good air conditioner, there will be water droplets (attached) phenomenon, which means that the air-conditioning system is relatively normal, if there is no above phenomenon, it means that the air-conditioning system is abnormal, we must go to the professional maintenance station to repair and check whether the refrigerant is enough, whether the heat dissipation system is good, we can use the car refrigerant filling machine to detect the low-pressure pipe and high-pressure pipe of the car, first of all, we look at the high-pressure gauge, If the high pressure gauge is too high, it may be that the heat dissipation system of the air conditioner is not good, and then look at the low pressure gauge, if the low pressure gauge indication is insufficient, it may be that the refrigerant is not enough, at this time, the refrigerant must be added, if it is confirmed that the refrigerant is not enough, it is necessary to add the car special car refrigerant, I personally think that there are several key points, is that the owner must pay attention to the car after the car is exposed, when starting the car, do not turn the car air conditioner to the maximum gear, but to properly adjust the temperature of the air conditioner, it is best to open the door or window, When the air in the car cools slightly, close the windows, and when using the car air conditioner, you must also use the start program correctly, and normally start the engine first. Then turn on the air conditioning system when the car turns off before stopping.

We have to turn off the air conditioning system and then turn off the engine, hoping that the riders can have a cooler summer!

In the history of the development of the world's cars, the family of car consumption is the beginning of the economic car, and in most developed countries, the economic car is the mainstream of the family car market. In today's world, energy-saving, environmentally friendly and compact economic cars are favored by consumers, and the development of economic car industry is encouraged and supported by the best countries in various countries.

The reasons why the air conditioner in the car is not cooling are as follows:

1. Freon is not enough (commonly known as "refrigerant" is not enough).

When the ambient temperature is about 35 degrees Celsius, 1, low pressure and high pressure 3, static pressure.

This is a normal situation, usually in the case of an old air conditioner that has been used for three to four years. The air conditioner did not completely stop cooling, but the effect of cooling decreased. This is because old air conditioners use freon as a refrigerant, which will volatilize after long-term use.

Therefore, users only need to add a little to the regular air conditioning maintenance point. In addition, it is not excluded that improper installation can cause freon leakage and problems with the machine itself.

2. The power supply voltage is insufficient.

The normal starting voltage of the air conditioner is 220V+-10%. In China's power supply system with a phase voltage of 220V and a line voltage of 380V, almost all compressors above 200V can be started. At 180V or more, 70-80% can be started, and at 160V or more, only a few can be started.

I've done it myself. Below 160V there is almost no possibility of starting. As a rule of thumb, the compressor starting voltage is more reliable above 190V.

3. The power of the air conditioner is not enough.

The general selection principle is: 150-250W square meters for cooling and 250-350W square meters for heating, in addition to comprehensive consideration of factors such as space height, level orientation, sealing performance and residential population.

4. The external environment temperature is too high.

There is a common saying: when the outdoor unit is in an environment above 43°, most air conditioners are difficult to transfer the heat from the indoor to the outside, resulting in no refrigeration.

5. The air conditioner is not cleaned and maintained for a long time.

If you want the air conditioner to operate normally and not affect human health, but also to prolong the life as much as possible, obviously, it is impossible to leave it alone as soon as you buy it and install it. Because the outdoor unit is exposed to the outdoors, it is easy to absorb dust and debris, and if it is not cleaned for a long time, it will affect the heat dissipation performance of the machine, resulting in the reduction of the cooling effect of the air conditioner. The indoor unit is related to the health of the human body, and if it is not cleaned for a long time, it will breed bacteria, pollute the air, and make people sick.