You must pay attention to these points when replacing the compressor

Replacing a compressor is not a simple matter, especially for unprofessional personnel. When encountering a compressor failure, you must first carefully check whether it is due to a problem with the compressor or other problems. After all, the compressor is relatively large and generally does not easily malfunction.

1. How to confirm whether the compressor needs to be replaced?

1. Listen: When a home appliance malfunctions, you must first listen to the sound. For example, after starting the air conditioning system, you can carefully listen to the sound of the compressor when it is working to see if there is any abnormality, especially the sound that is different from usual. Common ones include metal. Impact sounds, friction sounds, etc. If there are sounds like this, there is a high probability that there is a problem with the compressor. .

2. Look: Look can also be understood as observation. Although the compressor works internally, it will behave differently from the normal outside, especially for home appliances such as refrigerators and air conditioners. Once there is a problem with the compressor, the first thing that will show up is It is the cooling effect. You can check whether the cooling effect of the appliance is significantly reduced. If there is no refrigeration effect during normal operation, or the refrigeration effect is not ideal, it means that the compressor efficiency is declining.

3. Test; after listening and watching, it is time to test. First check the pressure. Use a pressure gauge to measure the high pressure in the system. If the high pressure is too high or the low pressure is too low, it means that the compressor cannot work properly.

4. Check; after following the above steps, you can also check for leaks, especially if there is any leakage in the system. Leakage can easily lead to insufficient refrigerant and cause the compressor to malfunction.

2. Precautions for compressor replacement:

1. Power outage: Before replacing the compressor of any home appliance, be sure that the power system has been cut off to avoid the risk of electric shock.

2. Drain the refrigerant. This is a critical step. You can follow the correct procedure to completely drain the refrigerant in the system. The advantage of this is that it can effectively avoid refrigerant leakage when disassembling the compressor.

3. Place an oil-catching pan: Before disassembling the compressor, place an oil-catching pan underneath it. The advantage of this is that it is convenient to collect any possible leakage of refrigeration oil without contaminating the maintenance environment.

4. Record the wiring and piping layout: Before disassembling the old compressor, make a detailed record of its wiring and piping layout to facilitate the final installation of the new compressor.

The above are the specific precautions shared about compressor replacement. Hong Kong Junhong Electrical Repair warmly reminds that safety incidents are no small matter. At the same time, in order to avoid frequent replacement of compressors, you should take care of them during daily use and avoid unnecessary consumption and wear and tear.