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Is your refrigerator loud? Then you need to find out the reason for the poor “behavior” of the equipment. This is not necessarily a breakdown, perhaps for your refrigerator this sound is the norm.
Modern manufacturers indicate a low noise level of equipment. Normally, this is 55 dB, no louder than a person’s spoken language. In the article, we will consider why the refrigerator is loud and what can be done to reduce noise.
Causes and elimination of loud refrigerator noise
If the new LG refrigerator is loud, 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 the work and stop buzzing so loudly.
Often the causes of noisy work are minor problems:
- Compressor motor bolts. Shipping bolts secure the motor shock absorbers to prevent damage during transit. If they are not removed after installing the equipment, the shock absorbers will not work, and the refrigerator will make a loud noise.
- Wrong installation. Check that the feet of the appliance touch the floor evenly. If not, they need to be adjusted. Make sure that there is a space of at least 5 cm between the refrigerator and walls, furniture. When the radiator is too close to the wall, air access is difficult.
- Invalid product loading. If you place dishes on the shelves, they may touch and rattle. It is necessary to place the containers away from each other.
- If the refrigerator makes noise 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.
- Use of refrigerant. When gas circulates in the pipes, extraneous sounds may appear.
There are also more serious malfunctions that require repair.
Common problems
Of course, the refrigerator cannot work completely silently. Gurgling, clicking, rattling can be heard. It is normal to start the engine loudly after a few minutes of rest. However, if the hum is much stronger than the values declared by the manufacturer, the cause may be a breakdown.
Fan problems
Refrigerators with a No Frost system are equipped with cooling fans. It is necessary to check whether the fans are covered with a layer of ice. If so, it is no wonder why the refrigerator makes noise and knocks. The blades cling to icy parts, the normal operation of the device is disrupted.
To fix the problem, you need to defrost for 10 hours. Also check the condition of the fan bearing: when grease is washed out of it, it starts to creak or buzz. After defrosting, relubricate the bearing.
Electrical malfunction
The problem with the start-up relay is observed when the refrigerator clicks loudly and cracks during operation. After that, the equipment may turn off. Replacing the relay will help. If you do not know how to repair, it is better to contact the master.
Malfunctions in the operation of the fan motor winding also lead to increased noise in Indesit, Bosch and other brands of refrigerators. To check the health of the windings, use a multimeter. If a short circuit or leakage to the case is found, the motor will need to be replaced.
The same applies to the motor-compressor. If there is a lot of noise, put your hand on the back of the refrigerator. If it is hot, then the motor is overheating and needs to be checked.
If the heating element burns out, frost forms on the evaporator, which interferes with the operation of the motor. Therefore, the motor starts to hum strongly. The wiring circuit of the heating element and its contacts are called by a multimeter. In the event of a malfunction, the heater is replaced.
Compressor motor failure
When the motor-compressor wears out, the refrigerator starts to buzz. The reason may be the weakening of knots and other parts. A malfunction can be expressed in prolonged operation of the motor without shutting down. The master will be able to install a serviceable part.
It is worth checking the compressor shock absorbers, which dampen vibrations. If they are worn out or weakened, then the vibration during operation will be given in the entire body. Shock absorbers need to be adjusted or replaced.
Blockage in the pipeline
Excessive noise can be caused by a clogged throttle and refrigerator filter. At the same time, cold is produced less intensively, the motor-compressor works with a vengeance and begins to buzz more strongly.
Unfortunately, it will not be possible to eliminate the blockage on your own, since special tools are required. Therefore, it is better to contact the service center or call the master.
To avoid buying noisy appliances, pay attention to the refrigerator body. There is a sticker where the energy efficiency class and noise level are indicated. Follow the installation instructions, do not put the refrigerator close to the wall. You will avoid many problems by following the rules of operation.