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The main reason for this phenomenon is the low humming electromagnetic sound emitted by refrigerators:
The grid voltage is too low, and the compressor is difficult to start.
The connection points between fuses, sockets, plugs and other components and wires are loose, resulting in on-off and off-time.
Capacitor capacitance is insufficient or deteriorates and fails. Elimination method of humming electromagnetic sound; Measure the power supply voltage, when it is less than 20% of the rated voltage, an automatic voltage regulator should be installed; Check the connection and contact status of fuses, plugs and sockets, and overhaul or replace them if they do not meet the requirements; Replace the capacitor.
The refrigerator emits a heavy humming electromagnetic sound, and the compressor is overloaded, causing the refrigerator to emit a heavy humming electromagnetic sound.
What caused the failure:
Generally in the hot summer and the influence of other heat sources, the ambient temperature rises.
Too much refrigerated, frozen food; The refrigerator door is not closed tightly, there is serious air leakage, and the cooling capacity is greatly lost.
Too much power switch action, too many times to open the door, too long.
The temperature controller is placed on the 7th gear of strong cooling. By measuring the current and installing a pressure gauge, check whether the compressor load is too heavy, if the load is too heavy, reduce refrigerated and frozen food, reduce the number of door openings, shorten the door opening time, remove obstacles, strengthen ventilation and reduce the ambient temperature; Set the temperature controller to 4th gear, and after the above processing, the fault can be eliminated.
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The compressor that has been used for many years is worn, and that is normal! Able to refrigerate normally! There is no need for people to repair it. (because the compressor is usually replaced in its entirety).
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The suction valve and exhaust valve inside the compressor open and close about 47 times per second when the machine is turned on, and the vibration sound is emitted. At the same time, the valve plate is constantly colliding with the relevant components and making a humming sound.
When the compressor is manufactured, there must be a gap between the parts, and when the refrigerator is running, the existence of the gap makes some parts collide, especially when the compressor parts are turned on and off, the force of the compressor parts changes greatly, and the sound is louder than usual.
Fluid noise, the process of compressor operation is a continuous suction and exhaust process, and the pressure of the refrigerant gas sucked in or discharged by the compressor has a sudden change, which will produce vibration sound.
Buyer's Guide:
There are also many types of refrigerators, and the division method is based on the door of the refrigerator. Refrigerators are divided into single-door refrigerators and double-door refrigerators according to the number of doors.
Double-door refrigerator: This type of refrigerator is the largest refrigerator on the market, the traditional upper and lower door design, the capacity is generally about 150-250 liters, the gap is relatively large, 1000 yuan or even tens of thousands of yuan price refrigerators have.
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The automotive air conditioning compressor is the heart of the automotive air conditioning and refrigeration system, which plays the role of compressing and transporting refrigerant vapor. There are two types of compressors: variable displacement and variable displacement. According to the different working principles, air conditioning compressors can be divided into fixed displacement compressors and variable displacement compressors.
The causes of abnormal noise of automobile air conditioning compressor are:
1. Because the electromagnetic clutch is relatively close to the ground in the installation position, the perennial driving of the car will inevitably cause the electromagnetic clutch to be stained with sewage or mud, resulting in damage to the inner bearing, resulting in abnormal noise.
2. The loosening of the transmission belt of the compressor is also one of the reasons for abnormal noise, the requirements for the electromagnetic clutch in the operation of the automobile air conditioning compressor are relatively high, and the load of the electromagnetic clutch will increase after the transmission belt is loosened, which can easily cause damage to the electromagnetic clutch, and more serious will burn the compressor.
3. The repeated engagement of the electromagnetic clutch makes the generator insufficient power generation, resulting in insufficient working voltage of the compressor and causing abnormal noise.
4. Maintain a certain clearance, the clearance here mainly refers to the gap between the electromagnetic clutch and the compressor, when the gap between the electromagnetic clutch and the compressor is too large, the impact they produce will increase, and too small will cause them to interfere with each other, which is the cause of abnormal noise. Summary: The gap distance should be checked every once in a while.
5. There is a lack of lubricating oil inside the compressor, and the lubricating oil should be added appropriately after long-term use of the compressor to avoid abnormal noise or scrap caused by friction.
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Hello, I found it for you.
A lot of the noise of the refrigerator is the resonance of the machine, and the resonance frequency can be changed.
2.Check whether the outer pipeline and the box are loose, the outer pipeline must be fixed, and the bolts should be added with spring washers.
3.If the pressure on the fixed damping rubber pad at the base of the compressor is uneven, the bolts of the connecting part should be adjusted and tightened and the washer that has lost its elasticity should be replaced.
4.Do not put debris on the top of the refrigerator to prevent resonance and noise.
Question: Everything in the refrigerator has melted.
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1. If there is a collision sound of "ping-pong" metal pipe vibration in the refrigerator compressor, this is the sound of the high-pressure muffling pipe breaking, which should be repaired in time.
2. If there is a "boom boom" sound in the refrigerator, and the sound is emitted in the running refrigerator compressor, this is the sound of the hanging spring in the compressor being broken or dislocated, and it should be repaired in time.
3. The "cluck" or "click" sound of the refrigerator, accompanied by obvious vibration of the compressor, is that the parts of the compressor are damaged or loose, resulting in impact, and should be repaired in time.
4. The "cooing" sound of the refrigerator is the sound of blowing oil bubbles caused by the refrigeration oil entering the evaporator too much, and it should also be repaired in time.
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The continuous humming sound of the refrigerator compressor is not normal when it is running, especially the new refrigerator, the compressor vibration should be very slight, and the old compressor has a large inter-shaft clearance because of the wear of the bearing, and the vibration of the space is too large during operation, and the continuous humming sound is emitted. There are many kinds of compressor structures, among which the heavy hammer compressor will produce a loud sound when it is sucked up and down under the action of electromagnetic field under the action of the electromagnetic field, but it should not be noisy during operation, even at night. If there is still an unbearable noise after excluding the unstable placement of the refrigerator on all fours and the vibration caused by the contents of the refrigerator close to the inner wall, then the refrigerator is likely to be caused by some loosening of the fastening bolts (especially those of the compressor) or, more seriously, the use of an old refurbished compressor.
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This is normal. There is some noise when the compressor is working.
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1. It may be that the refrigerant of the refrigerator is insufficient or there is no refrigerant, and the refrigerant is an indispensable part of the refrigerator refrigeration, so if there is no refrigerant, it is useless to just work on the compressor, and it will not be refrigerated. 2. The humming sound indicates that the compressor is working, and if it is not refrigerated, it may be that the capillary tube of the refrigerator is blocked, and the refrigerant cannot be left in the evaporator, and the cold and heat conversion cannot be carried out. 3. It may be that the refrigerator voltage is low, although the compressor has been humming but cannot maintain normal operation, so there is no way to refrigerate.
4. The refrigerator compressor is faulty, resulting in a humming sound and no refrigeration. Suggested solutions: 1. Contact the refrigerator after-sales maintenance personnel or home appliance maintenance, check whether the refrigerator refrigerant is at the normal pressure value, if it is a lack of refrigerant, then add it directly, and be sure to check whether there is a refrigerant leakage.
2. Check whether the capillary of the refrigerator is blocked, and if so, dredge it. 3. Use a multi-pen to check whether the voltage of the power supply where the refrigerator is located is normal, if the voltage is low or unstable, you can install a voltage stabilization device. 4. Contact the after-sales personnel of the refrigerator to check whether the compressor is damaged, and repair or replace the compressor directly if there is a problem.
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The solution to the loud noise of the refrigerator compressor is as follows:
1. The base of the refrigerator compressor is not firm, resulting in the compressor making a loud sound. At this time, the lid of the refrigerator should be opened first, and after finding the compressor, use a screwdriver to tighten the fixing screws of the compressor base.
2. The heat dissipation pipe of the compressor is deformed, resulting in a loud compressor. In this case, the heat pipe needs to be replaced in time, and the problem can only be solved by contacting the after-sales service.
3. Stacking too much debris on the top of the refrigerator will also cause the refrigerator compressor to make a noise. At this time, you need to clean the debris on the top of the refrigerator to ensure that the top is clean and tidy, and the sound of the compressor will be reduced.
4. The four corners of the refrigerator are unstable, which causes the compressor to vibrate and make a noise when it is running. At this time, the four corners of the refrigerator can be reinforced to ensure that the refrigerator is not tilted.
5. The compressor is aging. In this case, you can consider replacing the compressor with a new one, and if the cost is too high, you can consider replacing the refrigerator directly.
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Hello! This phenomenon is caused by the leakage of refrigerant in the refrigeration system of the refrigerator, and it is necessary to press to find the leakage point, fill the leakage point, and fill the refrigerant in the evacuation!
It is recommended that you contact the manufacturer for after-sales operation! Hope mine can help you!
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Hello! There are many reasons why the refrigerator is not refrigerated, insufficient refrigerant, ice blockage or leakage of the refrigeration pipeline, and failure of the temperature control system may cause the refrigerator to not refrigerate.
It's a pleasure to serve you, thank you!
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The freon in the copper tube doesn't reflux, maybe it's less fluorine, you add a little bit and try it
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1.System leakage.
2.System congestion.
3.Poor compression or compression of the compressor.
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The refrigerator relies on refrigerant to refrigerate, any refrigerator will emit the sound of refrigerant flow or eruption in the system when it is running, but due to the different structure and principle of the refrigerator, the sound volume will also be different, Haier refrigerator is produced on the basis of meeting the national standard, according to the standard of low noise, the refrigerant enters the evaporator after the capillary throttling and depressurization, due to the small diameter of the capillary, the flow rate of the refrigerant in the capillary is very fast, When entering the evaporator, due to the larger diameter of the evaporator pipe, the refrigeration will form an eruption sound at the capillary outlet, which is the normal sound of the refrigerant flow, and has no effect on the refrigerator, so please rest assured to use it.
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1. Contact the refrigerator after-sales maintenance personnel to check whether the installation of the refrigerator compressor is in place, whether there are screws or rubber pads that are not installed, and if so, reinforce them in time to make it no longer have resonance noise. 2. Clean the refrigerator compressor regularly to ensure that the inside is clean and free of other dust or debris, and add lubricants regularly to prevent the occurrence of the compressor shaft holding phenomenon. 3. Spread things on the surface of the refrigerator to keep the whole refrigerator balanced, and do not deviate from the center of gravity of the compressor.
4. Replace the refrigerator compressor with a new one or damaged parts. The main reasons are: 1. The refrigerator compressor is not installed very stably when it is assembled or shipped out of the factory, and the position of some screws or rubber pads is not stabilized, resulting in large resonance noise during work.
2. The compressor is not cleaned for a long time, so there is a lot of dust or debris on the surface of some internal parts to form noise, and in serious cases, it will also lead to the occurrence of the phenomenon of the compressor holding the shaft. 3. The uneven ground of the refrigerator leads to the center of gravity of the compressor, the noise during work, the production process or quality of the refrigerator compressor is problematic, resulting in unreasonable noise during work, and the damage to various parts of the compressor will be caused by a long time.
Dear Meiling users, hello!
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