What s the deal with the outdoor unit of the air conditioner humming all the time?

If the air conditioner is used for a long time, the reason why the external unit is buzzing is mostly the fan blades.

Caused by lack of oil or abrasion.

In general, this situation occurs, it is difficult for individuals to repair, and now many houses will not reserve an air-conditioning room, and the air conditioner can only be suspended on the wall, and can only be repaired by professional maintenance personnel, replacing the fan or adding some lubricating oil.

Second, the motor aging.

The air conditioner has a built-in brushless DC motor.

If the air conditioner is used more frequently or for a long time, it may be caused by serious wear and tear in the motor, based on the internal structure of the motor, it is also difficult for individual users to repair, the most secure solution is to replace a new brushless motor, and the resonance of the external unit will be reduced a lot.

In addition, there is a situation that must be noted that sometimes the buzzing of the air conditioner is not necessarily the problem of the motor, but because the fixing screws or motor screws of the air conditioner are loose, and the air conditioner will produce centrifugal force in the process of rotation.

This creates a vibration. If this is the case, simply tighten the screws.

3. Other reasons.

In general, the buzzing of the air conditioner is the above two reasons, but there are some other reasons, based on personal experience, and then there is an additional cause that causes the air conditioner to hum.

If the air conditioner upstairs is not fixed and is installed directly above your own air conditioner, you may not usually feel anything, but if the air conditioner is used upstairs or downstairs at the same time, there will be a resonance situation. Hope mine helps you! Hope.

As long as the air conditioner is working properly and the humming sound is relatively smooth, it is normal. During the use of the air conditioner, the fan motor of the outdoor unit will make a loud wind sound, and the compressor will also emit a large operating noise. The press hit the S-tube fan offset position during start-up, causing it to rotate irregularly when start-up.

This is the sound emitted by the outdoor compressor when it works, and if there is an abnormal noise, it means that there is dust collection or a problem, etc.

The outside unit of the air conditioner is buzzing and does not turn, and it may be a contactor.

If there is damage, the indoor unit and the outdoor unit cannot be connected, and the power supply cannot be transmitted to the external unit. The bracket installation level of the external unit is unstable or the fixing screws of the combined bracket are not tightened and deformed, which will cause the uneven placement of the air conditioner outdoor unit, and the noise will occur during the operation of the air conditioning outdoor unit.

After the air conditioner is turned off, the external unit is still humming, indicating that the fan of the external unit of the air conditioner is still rotating, and it needs to dissipate heat for a while before stopping. If the wall is not firm or the installation position is on the top, causing the wall resonance, the outdoor unit should be installed on the outer wall at the concrete beam from the floor as far as possible, so that the installation is the most firm, the noise is also the smallest, and the wall resonance will not be caused. It can be that the installation of the air conditioner is not standardized, the feet and brackets are not fixed firmly enough when the air conditioner is installed, the installation of the external unit is not stable enough, and the external unit vibrates when it is working, and some noise will be emitted.

First find the host with a sound, and then disassemble the outer cover, boot the sound from there, the general compressor 3 anti-vibration rubber pads aging, loose will also have a sound, it is best to replace it, if the cover is installed and there is a sound, then use foam paper pad to solve it. You can use your hand to press the shell of the air conditioner to see if it resonates with that place. If the hand pressure does not improve, then it is necessary to see if it is an inverter air conditioner.

Finish. Inverter air conditioners will run at low frequency after the indoor temperature reaches the surface. If the air conditioner is running upstairs, then this is normal.

However, if the noise continues to increase, there may be a problem with the air conditioner's fan. Repairs are required. Or maybe the air conditioner has entered something.

It needs to be cleaned up.

This may be because the air conditioner does not have enough refrigerant, or the air outlet of the air conditioner is blocked, the higher the wind speed is turned on, the quieter the sound will be, or because the panel of the air conditioner is partially loose, there will be a humming sound.

The main reason is that the air conditioner is constantly running, and the running engine will drive some sound in the process of vibration.

It's that the air conditioner has been used for a long time and there are some faults, you should call ** to find a maintenance worker and ask them to help you see what the problem is.

It is normal for the air conditioner to make a smooth buzzing sound, when using the air conditioner, the compressor will make a loud noise, if it is a frequent sharp sound, it may be a problem with the parts, it is recommended to report to the manufacturer for repair. The air conditioner's filter and heat exchanger can be cleaned regularly, and the guess calendar can reduce some of the operating noise.

When using the air conditioner, the compressor of the air conditioner will make a buzzing sound, if the sound is relatively gentle, the sound is not sharp, the effect of air conditioning refrigeration or ear change search and heating is normal, this sound is the sound of the normal operation of the air conditioner.

If the external unit of the air conditioner frequently emits sharp noise, it may be that there is a problem with the structural parts and system parts of the air conditioner, such as loose parts, deformation of the external unit, mutual contact and other abnormal conditions, it is recommended to report to the manufacturer for repair, and professional maintenance personnel will check the cause of the failure.

In the process of using the air conditioner, it is necessary to regularly clean the filter screen of the air conditioner and the heat exchanger of the air conditioner, which can reduce some operating noise, avoid dust accumulation and breed bacteria, and improve the cooling or heating effect of the air conditioner.

Air conditioning is a very important appliance in our lives, and air conditioning is very important in summer and winter. Especially in the hot summer, it is very comfortable in an air-conditioned room, but many people will find that the longer the air conditioner is used, the more likely it is to have problems. The main problem of the use of air conditioning is that it consumes electricity, the refrigeration effect is not good, and there will be a very loud sound outside the air conditioner.

Most friends will encounter a very loud sound outside the air conditioner, and what are the reasons for the loud sound of the air conditioner?

Reasons for the noise of the air conditioner:

1. Air conditioning outlet.

The main noise of the air conditioner is the air outlet of the air conditioner, when the air conditioner is turned on, the greater the wind speed, the noise value of the air conditioner will gradually increase, which is one of the main noise values of the air conditioner.

2. Loosening of the air conditioning panel.

Loosening of the air conditioning panels. When the air conditioner is used for a long time, the panel of the air conditioner is easy to loosen due to various reasons, so that the vibration generated by the air conditioner during operation will make the panels rub against each other, resulting in noise.

3. Installation of air conditioning indoor unit.

The installation of the indoor unit of the air conditioner and the connection of the outdoor unit also affect the timing, use and noise of the air conditioner. If the installation of the indoor unit is not stable enough, when the outdoor unit is running, the copper pipe is connected to the indoor unit, and the indoor unit is not stable enough, it will be affected by the compressor, resulting in the resonance of the indoor unit.

4. Air conditioning compressor.

Air conditioning compressor This is also one of the most important air conditioning noise, the noise value of the compressor is too large, which will also affect the use and rest of our normal users.

Hello, I'm Qingqing, thank you for your consultation, I've seen this question of yours, I'm sorting it out, I'll send it to you as quickly as possible, please be patient and wait for my little sister for a while, please

Hello, I will solve your doubts for you below, I hope it can help you. 1. The main noise of the air conditioner is the air outlet of the air conditioner, when the air conditioner is turned on, the greater the wind speed, the noise value of the air conditioner will gradually increase, which is one of the main noise values of the air conditioner. 2. Loosening of the air conditioning panelWhen the air conditioner is used for a long time, the air conditioning panel is easy to loosen due to various reasons, so that the vibration generated by the air conditioner during operation will make the panels rub against each other, resulting in noise.

3. The installation of the indoor unit of the air conditioner: The installation of the indoor unit of the air conditioner and the connection of the outdoor unit also affect the timing, use and noise of the air conditioner. If the installation of the indoor unit is not stable enough, when the outdoor unit is running, the copper pipe is connected to the indoor unit, and the indoor unit is not stable enough, it will be affected by the compressor, resulting in the resonance of the indoor unit. 4. Air conditioning compressor Air conditioning compressor This is also one of the best air conditioning noise, the noise value of the compressor is too large, which will also affect the use and rest of our normal users.

Solutions to the noisy outdoor unit of the air conditioner: 1. The noise caused by non-standard installation is common such as loose feet, unstable fixing parts of the bracket and uneven installation of the external unit. The noise caused by such factors is generally tightened to the external unit, and the noise can be discharged by leveling.

2. The outer casing is loose and causes the joint to collide with each other and vibrate during work to produce noise, and the fault part is judged first and then fastened. 3. The vibration of the press during work causes the collision noise between the external machine pipelines, and the fault can be eliminated by adjusting the mutual protection distance between the external machine pipelines or installing shock-absorbing cement. Noise when the press is working:

One is because of the components. It is common for the press to jam or the press to start the capacitor to damage it. Damaged spare parts can be replaced.

The other is that the performance of the press is poor, and it produces a low-frequency vibration hum when working. It can be eliminated by adjusting and replacing the shock-absorbing rubber pad of the press foot, wrapping soundproof cotton, etc. I really hope I can help you and I wish you a happy day!

Noise from the outside of the air conditioner is a very troublesome problem, but it cannot be avoided. The operation of a machine is always noisy between the various parts. In order to ensure that the noise of the indoor unit is minimized, many components are installed on the outdoor unit, which does lead to the increase in the noise of the outdoor unit, and the noise of the external compressor is very large.

The answer may be that the installation of the air conditioner is not standardized, the feet and brackets are not fixed firmly enough when the air conditioner is installed, the installation of the external unit is not stable enough, and the external unit vibrates when it is working, and it will make some noise. In this case, it is only necessary to reinforce the various parts of the external unit and place the external unit in a stable place.

Second, in the process of using the air conditioner, due to the collision and friction at the junction of each other, the vibration causes noise. In this case, first determine the cause of the failure, and then prescribe the right medicine. If the panel is loose and caused by local friction, the panel needs to be reinforced.

The noise of the air conditioning compressor is large, the compressor is an important component of the air conditioner, the compressor noise may generally be caused by vibration, in addition, the damage of the compressor parts, the poor aging of the compressor performance will also lead to loud noise and humming problems. In this case, it is necessary to adjust the spacing of the external machine pipeline, replace the damaged parts in time, install a vibration-absorbing platform, shock-absorbing cement, wrap soundproof cotton, and soundproof cover to solve the problem.

Take a look at it, dear.

There is a certain amount of operating noise when the outdoor unit of the air conditioner is running. The compressor and fan are outside. If the sound is too loud or there is an abnormal sound, it is not right.

It may be a lack of refrigeration lubricating oil, unstable compressor damping feet, unstable mounting brackets, resonance, aging and damage to the compressor, etc.

I don't know if you've been like this since you bought it, or if it's just a recent phenomenon? If you keep doing this after you buy it, there are several possibilities.

1. The press touched the S-tube when it started.

2. The offset position of the fan causes it to rotate irregularly when it starts.

3. The installation is not firm.

If this is the case in recent days, there are several cases.

1. The blades are broken.

2. There is a bit of a problem with the chassis of the press.

3. The motor is broken.

These are just speculations, you better call the manufacturer after-sales service and ask them to come to the door for testing.

The reason for the buzzing of the outdoor unit of the air conditioner, if it is a new air conditioner, you have to consult the installer or the factory for after-sales technical services. If it is an old air conditioner, which was not used in the original and appears when it is used now, it may be that the lubricating oil of the rotating parts is dry, or the bearing is loose, and the buzzing sound is caused by the shaking of the reason, or the exhaust outlet is blocked (of course, not all blocked). You can check the specific situation yourself, if you have professional knowledge in this area, if you can solve it, you can solve it yourself, if you can't solve it yourself, but the buzzing sound does affect your life or work, then you can only find relevant professionals to check and repair.

<> reasons why the outdoor unit of the air conditioner keeps buzzing: 1. It can be directly judged that the voltage is low, and check whether the mains power supply voltage is normal. 2. If the power supply voltage problem is ruled out, it may be that the starting capacitor capacity is too small, and a capacitor can be replaced.

3. If the capacitor capacity is fine, it means that the compressor is seriously lacking in refrigerant, and it is recommended to add refrigerant.

What is going on with the buzzing of the air conditioner outdoor unit sometimes, the air conditioner outdoor unit always has a buzzing sound, which may have the following reasons: the support frame is uneven at the beginning of the outdoor installation, and the support frame is deformed, resulting in the uneven installation of the outdoor air conditioner in Yuanhuai, and the placement of the outdoor unit should be checked whether the external unit is horizontal. The screws of the outer base of the machine are loose, and the vibration causes the entire chassis shell to jump and produce a sound when the machine is working.

Check the base screws, tighten the loose place with a wrench, and the hail is large. Pay attention to tighten several evenly at the same time, and slowly struggle. When the air conditioner is working, due to thermal expansion and cold contraction, the plastic pipe inside is deformed and produces noise, which is a normal phenomenon.

Check whether the indoor and outdoor connecting pipes are loose, and if there is such a phenomenon, the reinforcement is even an excuse. The air conditioner resonates with the wall, and the solution is to put a rubber pad at the foot of the outside unit. The service life of the machine is too long, which causes the motor to surge, and lubricating oil can be injected into the bearing to maintain its good working condition.

Check whether the fan blades have hit the wall of the housing, and if necessary, disassemble the housing for inspection. The external unit is not clean, and the garbage or particulate matter generated for a long time is accumulated, and it is cleaned every other time for a long time. Because the external unit is generally installed outside the wall, for safety reasons, it is necessary to invite professionals to come to the door to inspect and take sufficient safety measures (such as tying safety ropes).