Zhuhai Jiankun Precision Machinery Co., Ltd.

Nickname | quit

What is the reason why the car air conditioner compressor does not work?

Publication Time:

2021-11-12

The automobile air-conditioning compressor is an important part of the automobile air-conditioning and the heart of the automobile air-conditioning refrigeration system. It has a powerful effect of compressing and transporting refrigerant vapor, but sometimes the automobile air-conditioning compressor does not work, and the automobile air-conditioning compressor does not work. What is the reason? Let's take a look at it together.

What is the reason why the car air conditioner compressor does not work?

car air conditioning compressor does not work reasons:

1. Circuit system failure will effectively cause the automobile air-conditioning compressor to fail to work normally. After this reason occurs, the owner can check whether the circuit is smooth and check the temperature sensor solenoid valve.

2. The compressor is mainly used to compress and transport the cold air. After a problem occurs, you can check whether there is a refrigerant leak. When there is no cold air for compression or transport, it will naturally not work.

3. Serious wear and tear occurred inside the compressor, resulting in no way to carry out normal work. Because the compressor plays a vital role in the air conditioning system, its main job is to compress and transport the cold air, which leads to the compressor will be in a state of high-speed rotation for a long time, so this is also the cause of the compressor can not work properly. One of the reasons.

4. Due to the loosening of the plug of the air-conditioning compressor control circuit, poor contact is caused, the voltage supplied to the electromagnetic coil drops and the current is unstable, causing the electromagnetic clutch of the air-conditioning compressor to sometimes engage and sometimes disengage.

Automobile air conditioning compressor does not work fault inspection:

1. When the low pressure meter is much lower than the normal value, fuzzy fog flow can be seen in the mirror. There is no temperature difference between the high and low pressure pipes, and the air conditioner is not cold, indicating serious refrigerant leakage.

2. The indication of the low-pressure gauge is close to zero, and the indication of the high-pressure gauge is much lower than the normal value. At this time, the air conditioning system usually shows that the air outlet is not cold and the pipelines before and after the expansion valve are frosted. On the one hand, the expansion valve may be frosted and blocked, which makes the refrigerant unable to circulate in the system. At this time, the vacuum should be repeatedly pumped and the refrigerant should be added again. On the other hand, if the expansion valve is not opened, check the temperature bulb at this time.

3. Both high and low pressure gauge indications are too low. This may be the internal failure of the compressor, such as valve plate damage and valve plate gasket. The compressor needs to be replaced from time to time (the internal failure of the compressor will not cause the low pressure gauge indication to be too low).

4. The indications of the high and low pressure meters are lower than the normal value at the same time. This may be mainly due to insufficient refrigerant. During the inspection, we will find that the high pressure pipe generates slight heat and the low pressure pipe generates slight cold, but the temperature difference is not small. It can be observed from the sight glass that bubbles appear every 1~2s. At this time, we should check whether there is any leakage point first, and then make up the refrigerant.

car air conditioning compressor maintenance methods:

1. When using automobile air-conditioning compressors, it is necessary to add automobile air-conditioning additives to the air conditioner in time. The main function of this additive is to enhance the sealing degree of the air-conditioning compressor, reduce the wear of the air-conditioning, and effectively reduce the air-conditioning production. Noise, improve the working efficiency of the compressor.

2. The automobile air-conditioning compressor needs to be added with refrigerating oil in time after long-term use. If the refrigerating oil fails, it will easily cause damage to the compressor.

3. The tightness of the transmission tape during the operation of the air conditioner compressor also has a certain impact on the air conditioner. If the transmission tape is too loose, the electromagnetic clutch components in the compressor will be in line with the increase. If the transmission tape is too tight, it will cause The compressor does not run, so it is necessary to check the tightness of the transmission tape frequently.