
Why is the refrigerator buzzing?
The sound level depends on the age of the refrigerator, its installation and its use. When the appliance is loaded with products, this noise may increase, which is normal. But it should not be too loud. And the crackling sound from the refrigerator can be due to the contraction or expansion of internal parts due to changes in temperature. This should not worry you.
The unit also makes a noise when the condenser fan is not cleaned frequently. The noise comes from debris stuck in the fan. A slight or louder humming sound is normal for a refrigerator that is turned on. Most experts will tell you that this is normal. The sound is due to the compressor operating, transmitting resonance.

The appliance starts to hum slightly, which is normal. The noise is especially noticeable when the appliance is old. However, if the sound becomes deafening or the cooling capacity of the refrigerator decreases significantly, then you should call a professional. Not all appliance noises are the same. One of them is a hissing noise and is caused by water dripping into the defrost heater.
It's good to know that your refrigerator is an appliance that makes some kind of noise when it's on. But the scraping sound from your refrigerator is a cause for concern. This could be due to a problem with the two internal fans.

The first one is located at the bottom next to the condenser. The second fan is on the evaporator in the freezer. Something may be interfering with their operation, which leads to the appearance of a grinding sound from the refrigerator. Such problems are common in appliances with the No Frost system.
A noise accompanied by vibration means that water is not being supplied to the ice maker. Another common sound made by refrigerators is a rattling sound. This can be caused by several problems. One of them is that the appliance is not leveled properly, as well as touching a wall or cabinet. The rattling sound can also be caused by a loose drain in the bottom.
Reasons for refrigerator noise:
Compressor operation |
Fan problem |
Incorrect leveling |