What is the reason why the air conditioner compressor does not start

What is the reason why the air conditioner compressor does not start

Air-conditioning compressors belong to the middle of the air-conditioning refrigeration system. If there is a problem with the air-conditioning compressor, it will directly affect the air-conditioning. I want to tell you what the price of the air-conditioning compressor is? What is the reason why the air-conditioning compressor does not start? Let's take a look at it together, and hope that it can help you.

　　 1. Price of air-conditioning compressor

　　The price of air-conditioning compressor is 240-460 dollars. The working circuit of air-conditioning compressor is divided into evaporation zone (low pressure zone) and condensation zone (high pressure zone). The indoor unit and outdoor unit of the air conditioner belong to the low pressure or high pressure area respectively (depending on the working status). The refrigerant flows from the high-pressure area to the low-pressure area, and is injected into the evaporator through a capillary tube. The pressure drops sharply, and the liquid refrigerant immediately becomes a gaseous state, and absorbs a large amount of heat in the air through the heat sink. In this way, the air-conditioning compressor keeps working, and continuously absorbs the heat at one end of the low-pressure zone into the refrigerant and then sends it to the high-pressure zone to dissipate into the air, playing a role in regulating the temperature.

　　 2. What is the reason why the air conditioner compressor does not start?

　　 1. Reasons why the air conditioner compressor does not start:

　　 The working principle of the air conditioner compressor is that when the compressor is running, air is sucked in from the low-pressure pipe (large pipe) and air is discharged from the high-pressure pipe (small pipe). The refrigeration effect is achieved through the transfer of the compressor. Whether it is abnormal suction or abnormal discharge, it may cause the air conditioner compressor to not work. If the direction of the air inlet and outlet is reversed, it may be a little bit of air at the beginning, and the air will not be discharged later.

　　2, the air conditioner compressor does not work, simple maintenance method reference:

　　(1) First, analyze whether the pressure of the air conditioning system is normal. The pressure of the system was checked with an air-conditioning filling machine, and it was found that when the air-conditioning system was static, the upper and lower pressures were normal compared with the normal value. In this way, the shortage of refrigerant is eliminated and the air conditioner does not work.

　　 (2) Check whether the working circuit of the compressor of the air conditioning system is normal. Check the positive pole of the battery, the F9 fuse in the engine room, the BSI intelligent control box, the air conditioning compressor, and the grounding. This line is normal. Continue to check the positive pole of the battery, the fuse in the cabin, the BSI, the air conditioning compressor, and the grounding. This line is normal.

　　 (3) Check whether the pressure switch of the air conditioning system is normal. According to the circuit diagram, check the voltage of the No. 1 pin of the air conditioner pressure switch. For the horn, the compression machine does not work. All this shows. The pressure switch and its control circuit work normally.

　　 Note: When you use the air conditioner, you should understand the basic knowledge of the air conditioner compressor, so that when a problem occurs, it can be solved quickly, but do not blindly repair it.