Does your refrigerator work loudly? Then you need to find out the cause of the poor "behavior" of the technique. This is not necessarily a breakdown, perhaps for your refrigerator such a sound is the norm.
Modern manufacturers indicate low noise technology. Normally, this is 55 dB, not louder than a person’s spoken language. In the article, we will consider why the refrigerator is working loudly and what can be done to reduce noise.
Causes and elimination of the loud noise of the refrigerator
If the new LG refrigerator is working loudly, you need to pay attention to its characteristics. The instructions indicate that the noise level is 40 dB, but in fact the equipment is noisier - in this case, give the refrigerator time to adapt. Within a week, he will "get involved" in work and stop buzzing so loudly.
Often the causes of noisy work are minor problems:
- Motor compressor bolts. The transport bolts fasten the shock absorbers of the motor so as not to damage it during transportation. If after installing the equipment they are not removed, the shock absorbers will not work, and the refrigerator will make a loud noise.
- Incorrect installation. Check if the appliance legs are touching the floor evenly. If not, they need to be adjusted. Make sure that there is at least 5 cm of space between the refrigerator and the walls, furniture. When the radiator is too close to the wall, air is more difficult to access.
- Incorrect product loading. If you place dishes on shelves, they may touch and rattle. It is necessary to place the tanks away from each other.
- If the refrigerator is noisy only when the engine is started, then there is nothing to worry about. This is normal, because the motor needs power to “accelerate” to work.
- The use of refrigerant. When the gas circulates in the pipes, extraneous sounds may appear.
There are more serious malfunctions that require repair.
Common problems
Of course, the refrigerator cannot work completely silently. Gurgling, clicks, rattling can be heard. The norm is a loud engine start after a few minutes of rest. However, if the hum is significantly stronger than the values declared by the manufacturer, the cause may be a breakdown.
Fan problems
Refrigerators with No Frost system have cooling fans. It is necessary to check whether the fans have overgrown with a layer of ice. If so, it is not surprising why the refrigerator is noisy and knocking. The blades cling to the icy parts, the normal operation of the device is disturbed.
To eliminate the malfunction, it is necessary to do a defrost within 10 hours. Also check the condition of the fan bearing: when grease is washed out of it, it starts to creak or hum. After defrosting, renew bearing lubrication.
Electrical fault
A problem with the start-up relay is observed when the refrigerator clicks loudly and pops during operation. After that, a shutdown of the equipment may occur. Only replacing the relay will help. If you do not know how to perform the repair, it is better to contact the master.
Violations in the operation of the fan motor winding also lead to an increase in noise in Indesit, Bosch and other brands. To check the health of the windings, use a multimeter. If a short circuit or leak on the housing is detected, the engine will need to be replaced.
The same applies to the motor-compressor. If there is a lot of noise, place your hand on the back of the refrigerator. If it is hot, it means that the motor is overheating and needs a check.
If the heater burns out, ice forms on the evaporator, which interferes with the operation of the motor. Therefore, the motor starts to hum. The wiring circuit of the heater and its contacts are called by a multimeter. In the event of a malfunction, the heater is replaced.
Motor compressor failure
When the motor-compressor is worn out, the refrigerator starts to hum. The reason may be the weakening of the nodes and other details. A malfunction may result in prolonged operation of the motor without shutting down. Install the serviceable part will be able to master.
It is worth checking compressor shock absorbers that dampen vibrations. If they are worn out or weakened, vibration during operation will be given in the whole case. Shock absorbers need to be adjusted or replaced.
Pipe blockage
Excessive noise can be caused by clogging of the throttle and filter of the refrigerator. In this case, the cold is generated less intensively, the motor-compressor operates with a vengeance and begins to hum more strongly.
Unfortunately, it will not be possible to eliminate the blockage on your own, as special tools are required. Therefore, it is better to contact the service center or call the wizard.
To avoid buying noisy appliances, pay attention to the refrigerator body. There is a sticker showing the energy efficiency class and noise level. Follow the installation instructions, do not put the refrigerator close to the wall. You will avoid many problems by observing the operating rules.