Why does the air conditioner have a crackling sound

1. The inner lid is not tightly closed.

Regardless of whether the inner cover is tightened or not, sometimes the user does not close the inner cover tightly after cleaning the filter or hygienic cleaning, resulting in vibration when the air conditioner is working. When the air conditioner is turned on normally, in order to make the room cool or heat quickly, the indoor unit runs at high speed, and the noise will increase.

2. Sudden change in temperature.

When the air conditioner is running or shut down, the sudden change in temperature may cause the thermal expansion and contraction of the plastic shell and the internal plastic parts, causing a "click" sound, which is generally normal due to excessive temperature difference.

3. There is no regular cleaning of the filter.

If the filter is not cleaned regularly, if the filter is dirty, the air inlet will become clogged, which can easily increase internal noise. In order to improve this situation, it is best to clean the filter once every 2 months.

This may be a problem with the wind wheel.

A slight crackling sound is a normal phenomenon that occurs when the refrigerant starts to flow when the press is running on capacitive power. If there is no other condition after operation, it is normal. It may also be the sound of thermal expansion and contraction of the plastic caused by the temperature difference between the inside and outside of the machine, if the sound is loud.

Or some parts are material parts, such as face covers, etc., these parts have cold shrinkage in winter due to low temperature, when the machine is started, there is slight friction, and there is hot air sent by the air conditioner in winter, and the phenomenon of heat rise will also occur.

It is normal for the air conditioner to make a crackling sound <>, because the cooling and heating effects of the air conditioner are very significant, and there is often a situation of thermal expansion and contraction, which will bow |There was a crackling sound in the air conditioner. The air conditioner is still crackling when it is turned off, because the evaporator of the internal unit is frozen, and the sound of ice cracking. You can set the temperature a little higher.

When the temperature difference between day and night is relatively large, the temperature set during the day is low, the room temperature should not be reached, and the air volume of the internal machine is also large, so it will not freeze; It is easy to reach low temperatures at night, and when the wind speed is low, it may freeze.

Taking Gree air conditioner as an example, it is normal for the air conditioner at home to crackle a little, which is a phenomenon that occurs when the refrigerant begins to flow when the air conditioner press is running on capacitor power. It is normal for the air conditioner to have this sound when it is first turned on, and there is no sound after it starts to run.

The crackling sound of the air conditioner may also be the sound of plastic thermal expansion and contraction caused by the temperature difference between the inside and outside of the machine, and the air conditioning parts have cold shrinkage due to the low temperature in winter, and there is slight friction when the machine is running, which is normal. Or if the filter is not cleaned regularly, the air inlet will be blocked if the air conditioner filter is dirty, and the internal noise of the air conditioner indoor unit will increase after the blockage. If this is the case, cleaning the filter in time can be solved, and the general air conditioner filter should be cleaned regularly every 2 months or so, which must cause other unnecessary problems.

If the crackling sound is loud and the sound is continuous, it may be that there is a problem with the motherboard or other things in the air conditioner, and you need to find professional after-sales personnel to test and repair.

This answer applies to most brands of air conditioner models such as Gree, Midea, and Haier.

Taking Gree air conditioner as an example, the reason why the air conditioner has a crackling sound may be due to thermal expansion and cold contraction, which makes the plastic shell of the air conditioner crackle; It is also possible that when the voltage machine is running on capacitor power, the sound generated by the flow of refrigerant can be alleviated after a period of use. So, be sure to pay attention when using it.

When using the air conditioner, it is normal to have a crackling sound, but it is not excluded that the air conditioner is out of order. So, still go check it out. At this time, you can disassemble the peripheral structural parts of the air conditioner to see if the structural parts inside the air conditioner are loose, or if they are not firmly fixed, if there is no such situation, then the crackling sound is normal.

The crackling sound of the air conditioner is actually very normal, because usually when using the air conditioner, the cooling mode and heating mode of the air conditioner are generally selected, so the air conditioner will make a crackling sound in the case of thermal expansion and contraction.

This answer is applicable to most brands of air conditioners such as Gree, Midea, and Haier.

Air conditioning is used a lot in our daily life, and with it, you can live more comfortably in both winter and summer. When we use the air conditioner, the air conditioner will inevitably have the sound of running, which is normal, but if the air conditioner has been crackling and other abnormal sounds, or even noise, it is necessary to repair the fault in time.

Why is the air conditioner crackling

1. The filter is not cleaned regularly (the correct one should be cleaned every two months). If the filter is dirty and the air intake is blocked, it will not only make the car louder. There is vibration, the wind speed is low, and the wind speed cannot be increased.

When the outdoor ambient temperature is not too low, the indoor machine will have evaporator overheating protection, and the waiting opportunity is very frequent, generally about 10 minutes.

2. The inner cover is not tightly covered after cleaning the filter screen or hygienic cleaning, resulting in vibration when the air conditioner is working; When the air conditioner is turned on normally, in order to quickly heat up (cool down) the room, please use the high-efficiency button to run the indoor unit at high speed, and the noise may be slightly louder. After a while, the air conditioner switches to normal operation and the sound is naturally low. In general, the high-efficiency function will automatically stop after 15 minutes.

3. When the air conditioner is running or stopping, the sudden change in temperature may cause the thermal expansion and contraction of the plastic shell and the internal plastic parts, resulting in a "click" sound, which is a normal phenomenon. Under normal circumstances, when the machine is running, the temperature difference is too large, resulting in thermal expansion and cold contraction, but when a certain expansion coefficient is reached, there will be no more "click" sound.

Will there be a sound from the air conditioner normally

The following sounds will be heard when the air conditioner is working normally:

1. The sound of the air conditioner running. In this case, the corresponding wind speed can be adjusted to improve the corresponding wind sound.

2. The "crackling" sound caused by the thermal expansion and contraction of the plastic parts of the air conditioner cannot be completely avoided, and can only be improved by adjusting the tightness or position of the shell.

3. The sound of the refrigerant rapidly vaporizing and liquefiing in the pipeline.

What is the reason why the air conditioner is loud

1. The noise of the air conditioner is too loud, which may be due to the excessive wind speed of the air conditioner outlet. Secondly, it may be used for a long time, which may cause the air conditioner panel to loosen. The vibration of the air conditioner during operation may cause friction between the panels, resulting in noise, or the installation of the internal units of the air conditioner is not stable enough.

Then make sure that the air conditioner cross-flow fan is adequately lubricated. If it's not slippery enough, it will make a loud grinding sound. In the end, air conditioners can only be considered semi-finished products that leave the factory.

The process from the installation of the indoor unit to the connection of the outdoor unit can also affect the use of the air conditioner and even generate noise.

2. If the rack where the air conditioner is placed is not firm enough, it will cause the pipes of the outdoor unit to resonate and produce noise. When the air conditioner is turned on or off, it is normal for the noise caused by the thermal expansion and contraction of the plastic parts in the machine. Once there is an abnormal noise, check the various places in time.

3. The noise may also be caused by the outdoor unit being too dirty. If everything is checked in place and there is still noise, then it must be that some parts of the aircon are too old and need proper repair and maintenance.

<> the air conditioner crackles: 1. If it is caused by not closing the inner cover tightly after cleaning the filter screen or cleaning the inner unit, open the shell and cover it tightly. 2. If it is caused by thermal expansion and contraction of the plastic shell or internal plastic parts, it will stop after a while.

3. If the air inlet is blocked due to the dirty filter screen, it is recommended to clean the air conditioner.

Summary. Hello dear, the crackling sound of the air conditioner may be due to the following reasons:1

Condenser icing: When the air conditioner is working, the surface of the condenser may freeze. When the freezing temperature is low, the ice on the surface of the condenser will suddenly melt, causing a crackling sound.

2.Compressor running sound: The compressor of the air conditioner is the core component that produces the cooling effect.

During operation, the compressor produces vibrations and operating sounds, which may sometimes become noticeable. 3.Pipe expansion and contraction:

The ducts in an air conditioning system expand and contract during temperature changes. This change sometimes causes friction and vibration in the pipes, producing a crackling sound. 4.

Fan impurities: Fans inside air conditioners, especially outdoor units, may inhale impurities such as dust or foreign objects. These impurities may rub against the fan blades, causing noise.

5.Aging or loosening of components: After prolonged use, the parts inside the air conditioner may deteriorate or loosen.

For example, loose screws, aging connecting lines, etc., can cause noise.

Kiss! Hello, a blessing, a warmth, a Sun Zao moved I am Xiao Li, a cooperative teacher who asks a question, I have been engaged in this industry for a long time, and I have a grateful heart, and my life is moved everywhere! Your question has been received, typing needs a little time between the ears, please wait 1-4 minutes, and you will be answered immediately<>

Hello dear, the crackling sound of the air conditioner may be due to the following reasons:1Condenser icing:

When the air conditioner is working, the surface of the condenser may freeze. When the temperature of the ice is low, the ice on the surface of the condenser will suddenly melt, causing a crackling sound to make a potato noise. 2.

The sound of the compressor running the compressor: The compressor of the air conditioner is the core component that produces the cooling effect. During operation, the compressor produces vibrations and operating sounds, which may sometimes become noticeable.

3.Duct expansion and contraction: Ducts in an air conditioning system expand and contract during temperature changes.

This change sometimes causes friction and vibration in the pipes, producing a crackling sound. 4.Fan Impurities:

Fans inside air conditioners, especially outdoor units, may inhale impurities such as dust or foreign objects. These impurities may rub against the fan blades, causing noise. 5.

Aging or loosening of components: After prolonged use, the parts inside the air conditioner may deteriorate or loosen. For example, loose screws, aging connecting lines, etc., can cause noise.

How to fix it. This is normal.

If it rings all the time, it needs to be operated by a professional maintenance personnel.

What is the reason why the air conditioner buzzes after running for a while?

1.When the air conditioner starts or stops, the sound of the plastic parts of the inner unit expanding and contracting due to temperature changes is a normal phenomenon. There are some pipes that are deformed due to thermal expansion and contraction that are attached to the compressor or metal casing and cause resonance, so there is no need to worry too much at this time.

2. Whether the fixed wall of the internal and external machine is firm, and the loose or deformed screws of the fixed wall are easy to lead to this situation. 4.Check whether the indoor and outdoor connecting pipes are fixed and whether they collide with the outdoor unit or other objects.

5.When the air conditioner is started or stopped, it is normal for the refrigerant in the system to make a loud flow sound before reaching equilibrium. The outdoor unit is too dirty.

After the power is off, wash with water. The fan runs against the exterior wall. Adjust the distance between the fan and the exterior wall in time.

Also, it's possible that the fan is stuck. 7.Add some lubricating oil to the shaft of the air conditioner fan to ensure the smooth rotation of the fan.

Resonance occurs due to the hardening of the compressor pads, or the compressor itself is noisy (which is unlikely).

The air conditioner will be turned on for a while.

1: For example, if you set the temperature to 26 degrees, when the room temperature reaches 26 degrees, the external machine will stop running! When the room temperature exceeds 26 degrees, the machine runs again!

This is normal. He said: The problem with your computer is that the voltage is not enough.

Because the air conditioner is on, the voltage on your computer is low! Even with the floodlights on, it will be a little dark. The voltage problem is the problem of your local power plant!

When the air conditioner is running, there is an occasional "click" and "click" sound, is this normal?

It should be seen the specific model of the air conditioner and the position where the sound is generated. If a multi-way air conditioner is used, the front part of the indoor unit is very crisp when running in the air conditioner refrigeration mode, and the rapid clicking sound is emitted by the electronic expansion valve when it is in action, which is normal. If when using an air conditioner, the sound of friction between the components of the indoor unit structural components due to thermal expansion and cold contraction is not normal, it is necessary to properly disassemble the structural components to check whether the solid fixed parts of each part.

Here's a possible cause: Auto mode might be enabled. When the set temperature is close to room temperature, the machine will stop working at the set temperature.

Causing the illusion of failure to stop driving for a while, the actual air conditioner is no problem. The voltage is abnormal and unstable. Compressor overload protection.

It is recommended to try replacing a voltage regulator. 3. The temperature of the indoor coil is too high, resulting in protective shutdown. When the indoor temperature is 26 degrees Celsius and the outdoor temperature is above 20 degrees, the air conditioner is not heating normally, which is easy to cause protection.

Failure of the indoor fan, resulting in no blowing and protection shut-off. Outdoor fan malfunction, resulting in severe frosting. It has the function of defrosting and cold air entering the room.