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The noise in the refrigerator has a great impact on our rest. What is the cause of the noise? Knowing the cause of the noise can tell you how to deal with the noise problem of the refrigerator. The following decoration home decoration network Xiaobian will introduce the common reasons and solutions for the noise of the refrigerator, I hope to provide you with help.
Analysis of common causes of noise in refrigerators:
The noise of the refrigerator mainly comes from the compressor, the thermal expansion and contraction of the evaporator and the condenser, the rubbing or resonance between the pipelines, the activity of the refrigerant in the pipeline, and the oscillation of the refrigerator that is not leveled. The specific reasons are as follows:
1. Noise source of compressor:
A, the suction valve and the exhaust valve inside the compressor;
When starting up, each valve piece should be opened and closed about 47 times per second. In addition, the valve will continue to collide with nearby components, which will also produce "å—¡å—¡" refrigerator noise.
B. When the compressor is running, it is better not to have gaps between the parts, because when the refrigerator is working, the gap between the parts will cause some parts to collide, especially when starting and stopping, the compressor parts The force is changed a lot, and it is easy to generate a large noise.
C. Fluid noise, the process of compressor operation is a process of suction and exhaust, and the pressure of the refrigerant gas sucked or discharged by the compressor suddenly changes, and vibration sound is generated.
D. Electromagnetic sound generated by the built-in motor.
E. The compressor body is suspended by three hoisting springs or supported by a spring in the casing. When the compressor is started or stopped, the force of the body changes greatly, and sometimes the body and the casing collide and sound, which is a short duration.
F. Refrigerator refrigeration relies on refrigerant circulation activities, especially when flowing through the evaporator. If the refrigerator is not operating, the sound is not heard, and the evaporator is not cooled. The condenser is not hot, indicating that the refrigerator is malfunctioning.
2. The reason why the refrigerator suddenly produces a "giggle" or "beep" sound:
This is the sound produced by the condenser of the refrigerator and the thermal expansion and contraction of the evaporator or the icing of the evaporator. This sound is easily generated in the following cases under the following conditions.
A. After half a year or one year of use of the refrigerator, the noise will increase due to the running-in of the internal body of the compressor. In the future, it will enter a stable period, and the noise of the refrigerator will gradually return to normal.
B. The refrigerator is just defrosted, and the temperature inside the box is not uniform. It will cause noise in the refrigerator.
C. When the refrigerator door is opened to take food, the evaporator in the box is heated.
D. After the refrigerator starts working or shuts down for a few minutes, the temperature of the condenser and evaporator changes greatly.
3. The reason why the noise increases after the refrigerator is deactivated for a period of time:
After the refrigerator is deactivated for a long time, the appearance of the internal operating parts of the compressor is not smooth. If the operation is restarted, the noise will increase and it will return to normal after a period of time. Therefore, after starting to use the refrigerator, it is best not to stop for a long time. Use the refrigerator.
4. When the refrigerator is turned on and off, it produces a lot of noise:
A. When the refrigerator is just started, the machine is unstable due to high and low pressure, which easily causes the compressor to oscillate and generate loud noise.
B. When the refrigerator is working, if the voltage is low, it is easy to cause loud noise.
C. When the refrigerator is stopped, because the internal working pressure is suddenly out of balance, the tension spring in the compressor will also produce a short oscillation sound within a certain period of time.
5, the reason why the refrigerator noise is farther than the nearest place:
Because the noise of the refrigerator is related to its location, room size and other factors. The sound waves generated when the refrigerator works, will touch the wall or the furniture will constitute a reflection, and the repeated reflections will double the noise, so it can show the appearance of noise near the far side of the refrigerator. Therefore, it is not accurate to judge the noise by using only a few meters of the refrigerator.
6. The sound of running water inside the refrigerator:
The refrigerator is cooled by the refrigerant. Any refrigerator will have refrigerant static during work. Just because the layout and principle of the refrigerator are different, the noise level will be different. The refrigerant enters the evaporator after being depressurized by the capillary. Because the diameter of the capillary is small, the flow rate of the refrigerant is very fast when it moves in the capillary. When the evaporator enters the evaporator, the diameter of the evaporator becomes larger, so that the refrigeration is at the outlet of the capillary. It will constitute a kind of jet sound, which is the normal movement of refrigerant activity and has no effect on the refrigerator.
More related wonderful reading:
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What is the reason for the leaking of the refrigerator? Refrigerator leak solution
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