What kills an AC compressor?

The most obvious manifestation of a broken car air conditioner compressor is that the cooling effect of the air conditioner is very poor, but the reason why the air conditioner does not cool is not necessarily all due to the broken air conditioner compressor, and there may be other reasons.

What causes ac compressor failure?

Normally, the car air-conditioning compressor is not easy to break down, but some failures may occur if it is used for a long time. There are mainly the following reasons:

1. Poor lubrication inside the compressor: There is a lack of lubricating oil in the air-conditioning compressor or the lubricating oil has failed. The lack of lubricating oil may cause the air-conditioning compressor to lock up. The air conditioner compressor is locked. The most obvious manifestation is that the engine of the car may be turned off. After the engine is turned off, we will still smell a burning smell and white smoke will come out.

2. The air conditioning system is not clean: long-term use of the air conditioner will inevitably cause dust or lubricating oil to condense and cause the compressor to block.

3. Too much refrigerant or lubricating oil in the system: As we all know, if there is a lack of refrigerant or too little refrigerant, the compressor will not have enough refrigerant oil to work, and if it is not well lubricated, the compressor will be easily damaged.

4. The electromagnetic clutch of the press is slipping and the friction temperature is too high: this situation is generally due to the problems of the separator after long-term use, and only the separator needs to be replaced.

5. The power configuration of the compressor is too small: A compressor with too small power cannot bear the intensity of the corresponding air conditioner specification, but generally, this kind of situation rarely happens. In many cases, the failure of the vehicle air conditioning system is caused by the difference in A/C compressor types and improper use by the owner. During use, remember the following points: 1. The temperature should not be too low; 2. Control the direction of the air outlet; 3. Do not use it for a long time; 4. Properly turn on the large air volume; 5. Turn off the air conditioner when driving at a low speed.

The inspection method for the car ac compressor

1. Check whether the joints and joints of each device are oily.

2. Check whether the HVAC valve or thermal damper is closed and whether other dampers are adjusted normally.

3. Check that the condenser fan is running well.

4. Check whether the drive belt is broken or loose If the drive belt is too loose