1. The outdoor unit bracket is not installed horizontally, or the fixing screw of the combined bracket is not tightened correctly and deformed, which will cause the feet of the outdoor unit to be uneven. At this time, the outdoor unit bracket should be rearranged, adjusted horizontally or fastened with the fixing screws of the bracket.
2. For the noise caused by improper installation, loosen the fixing screw of the outdoor unit base again, and tighten the screw with a wrench, and tighten it evenly. It is forbidden to fasten one of the screws in place first, which will cause uneven fixing force.
3. First of all, make clear the wall structure, such as precast concrete, and the indoor side is mostly office space or bedroom and study. , relatively hollow, will produce indoor surround sound, which belongs to the architectural structure and the interior decoration effect of the house. This phenomenon belongs to objective factors.
4. If the noise is caused by the damaged parts of the compressor, the damaged parts can be replaced. If the noise is too high due to the poor performance of the compressor itself, you can replace and adjust the vibration reduction gasket of the compressor, or wrap the compressor with sound insulation cotton.
If there is something wrong with the air conditioner, please feel free to find Huichi to solve it for you.
Shanghai Huichi (Huichi-China)
What is the reason for the loud noise of the outdoor unit of air conditioner? The external machine support is uneven or the screws are not tightened. Because the wind speed of the air conditioner is too high, the running speed of the air outlet of the air conditioner is too high, and the noise increases accordingly.
Due to the unstable installation of the internal unit of the air conditioner, when the external unit is running, the internal unit will generate * * * vibration through the connected copper pipe.
Air-conditioning compressor is aging, and it produces * * * vibration during operation.
The outer panel of air conditioner is loose, and the friction between panels produces noise during operation.
Solution:
Damage to the air conditioning fan will lead to excessive noise. In this case, you can contact the air conditioning maintenance company for maintenance, and it will return to normal after general maintenance.
The loose screw of the air conditioner outdoor unit causes the casing of the air conditioner outdoor unit and the compressor to stick together, resulting in vibration and noise. In this case, just tighten the screws.
The auxiliary vibration damping tool, namely the external shock absorber of air conditioner, is adopted. This tool is specially designed for air conditioning noise.
What is the reason for the loud noise of the outdoor unit of air conditioner? The noise of the outdoor unit is caused by the following reasons:
1, used for a long time, the bearing of the cooling fan is worn, and even eccentric rotation is noisy.
2. The vibration damping pad at the bottom of the compressor is damaged, and the compressor vibrates during operation.
3. The outdoor unit shell is loose, which leads to vibration during operation.
4. The compressor is aging, which produces hum, similar to the principle that the old cow pulls the heavy truck.
It's usually like this.
What is the reason for the loud noise of my beautiful outdoor air conditioner? The casing of the outdoor unit and the screws fixing the bottom corner of the outdoor unit are loose, or there is abnormal vibration and noise inside the outdoor unit. It is recommended to arrange maintenance personnel for inspection and handling.
Midea air conditioner belongs to Midea Group, which is a business platform integrating R&D, production and service of household and commercial air conditioner products. In addition to Shunde headquarters, Midea Air Conditioning has established manufacturing bases in Guangzhou, Wuhu, Wuhan, Handan and Chongqing, and its products sell well in more than 50 countries and regions around the world, ranking first in export for seven consecutive years.
(1) Strong alliance: 20 1 1 April, 2000, the "Midea-Toshiba Carrier Inverter Air Conditioning Innovation Technology Joint R&D Center" was established, and an inverter air conditioning technology industrial chain with completely independent intellectual property rights was established, from inverter control chips, inverter control algorithms, DC inverter compressors and DC brushless motors to inverter air conditioning manufacturing technology and quality management.
(2) Independent innovation: Over the past 30 years, through continuous technological innovation, we have gained recognition from many professions. As of June 30th, 20 12, patents 183 1 have been applied, including 3 invention patents, 6 utility model patents19 patents and 902 design patents. [1] "Intelligent power-saving control technology of solar hybrid air conditioner" was listed in 2066.
The noise of the outdoor unit of an air conditioner is usually louder than that of the outdoor unit during refrigeration. The main reason is that the outdoor heat absorption is limited in winter, and the refrigerant temperature entering the compressor is too low, which will lead to the compressor running at low temperature and high load, resulting in mechanical vibration. The only solution is to lower the sound.
1。 The machine is equipped with special rubber pad for air conditioning plant.
2。 External soundproof cotton weighting bag or additional bag
3。 Weight rubber blocks on the air return pipe and exhaust pipe of the compressor air return separator.
These are all noise reduction methods that I have worked in air-conditioning enterprises for many years.
Please inform the manufacturer to handle it at the after-sales outlets. Ask him to explain whether the handling method is consistent before coming to the door. Don't let people cut corners!
If not! Where to compare the products of the same model, and then know whether the turnover is normal.
Unusually looking for a merchant to exchange goods!
What is the reason for the loud noise of the outdoor unit of air conditioner? I don't know if your outdoor unit is noisy after you buy it or it has only been in recent days. If you buy it back and keep it like this, there are the following possibilities.
1. The press touched the S-tube when it started.
2. The offset position of the fan leads to irregular rotation when starting.
3, the installation is not firm
If it is only in recent days, there are the following situations.
1. The outdoor fan blade is broken.
2. There is something wrong with the printer chassis.
The motor of the outdoor unit is broken. The following is our Shenzhen Gree air-conditioning maintenance.
The technicians will give you answers to the problems that are most likely to occur when outdoor air conditioners are noisy:
1. Is the outdoor air conditioner installed in a ventilated place? If not, please change its location.
2. Whether the outdoor unit shelf meets the national standard (national standard: 1.5P2P shelf steel plate shall not be less than 3mm and 3P5P shall not be less than 5mm). Otherwise, it is easy to cause the outdoor unit to shake and produce sound.
3. Whether the screws are tightened by the outdoor unit installation teacher.
4. Whether the compressor of the outdoor unit scratched the casing, causing the * * * earthquake.
The above is for reference only. You'd better ask the master to install it for you. Now air conditioners are usually repaired for six years free of charge.
All the above reasons about the loud noise of the outdoor unit of air conditioner are just speculation. You'd better call the manufacturer and ask them to check at home after sale!
What is the reason for the noise of outdoor air conditioners in Midea? I don't know whether your outdoor unit is hung on the wall or on the ground. It depends on the fact that it hangs on the wall. It should be that the four corners of the outer frame don't work, and the four corners are very important. I hope it helps you.
Midea's outdoor air conditioner is noisy. If it is a frequency conversion air conditioner, the frequency conversion compressor will run in a high-frequency and high-power state due to the large temperature difference between the set temperature and the room temperature just after starting, so the outdoor compressor will make a high-frequency howling at this time.
Expand:
1, frequency conversion air conditioner is an addition of a frequency converter to the conventional air conditioner. Compressor is the heart of air conditioning, and its speed directly affects the efficiency of air conditioning. Frequency converter is a control system used to control and adjust the speed of compressor, so that it is always in the best speed state, thus improving the energy efficiency ratio (at least 30% less energy than conventional air conditioners).
Its basic structure and refrigeration principle are exactly the same as those of ordinary air conditioners. The main engine of variable frequency air conditioner can automatically change speed continuously, which can automatically provide the required cooling (heating) amount according to the room situation; When the indoor temperature reaches the expected value, the air-conditioning host will run at a constant speed that can accurately maintain the temperature, thus realizing "non-stop operation" and ensuring the stability of the ambient temperature.
2. Working principle
The inverter is installed in the inverter air conditioner. How does this inverter controller work? China stipulates that the voltage is 220V, and about 3 10V DC is obtained by rectifying and filtering the current with a frequency of 50Hz. After this DC inverter, a variable frequency power supply can be obtained to control the operation of the compressor, and the power grid frequency of 50 Hz can be converted to 30- 130Hz. Frequency conversion air conditioner is an air conditioner with frequency conversion compressor and fuzzy control technology, which can adjust the cooling speed according to the change of indoor temperature. 15 square meter room, the speed of variable frequency air conditioning is 6~ 10 minutes faster than that of fixed frequency air conditioning. After reaching the set temperature, the inverter air conditioner can run at low speed with only 10% of the power of the fixed frequency air conditioner, so as to adjust the slight temperature loss and maintain the constant temperature state.
Frequency conversion air conditioning is generally controlled by microcomputer. Detect indoor and outdoor signals such as temperature (indoor and outdoor temperature, evaporator temperature, condenser temperature, suction nozzle temperature, inlet and outlet temperature of expansion valve, radiator temperature at the beginning of frequency conversion, etc.). ), fan speed, motor current, etc. The microcomputer sends out signals such as fan and compressor running speed, refrigerant flow, width switching and safety protection. This machine is equipped with an electronic expansion chamber throttle valve. It changes the flow rate of refrigerant at any time with the signal sent by the microprocessor, so its efficiency is higher than that of capillary throttling. At the same time, in the refrigeration mode, there is no trouble of defrosting (defrosting is non-stop). Therefore, when the air conditioner is heating, it will not blow out cold air to lower the room temperature when the defrosting pump is reversed like ordinary machines.