Is it normal for a good freezer to have a sound

What kind of sound is a normal sound? You don't have to worry, the freezer manufacturer has summarized some relatively normal sounds for you, you can distinguish and judge scientifically, so as not to miss the normal freezer, it is also good to buy a freezer with abnormal sound.

1. It is normal for the freezer to make a "hissing" sound or a "gurgling, gurgling" sound of running water during use. These sounds are the normal sounds of the refrigerant circulating in the refrigeration pipes of the electric freezer, and will not affect the cooling effect. Otherwise, there may be a blockage in the refrigeration system.

2. A continuous humming sound is sometimes emitted during the operation of the freezer, which comes from a U-shaped exhaust pipe connected to the compressor. The function of this exhaust pipe is to transport the high temperature and high pressure gaseous refrigerant discharged from the compressor to the condenser.

Considering the effect of thermal expansion and contraction when manufacturing the exhaust pipe, it is usually made into a U shape. When the compressor is running, the U-shaped exhaust pipe will have a resonance phenomenon, which is the reason for the humming sound. This kind of noise does not affect the normal operation of the freezer. The way to eliminate this sound is as simple as wrapping a piece of string or a piece of tape around the U-shaped tube so that it does not vibrate.

3. The freezer sometimes makes a slight ticking sound, which is the sound when the defrost timing relay turns. Some refrigerators will also hear a slight blowing sound, which is the sound of cold air blowing when the small fan of the evaporator of the electric refrigerator is running.

4. It is normal to hear a "click" sound when the freezer starts or stops. This is the sound of a hammer relay, thermal protector, or defrost timer opening or closing contacts, sometimes accompanied by a vibrating sound.

Regular cleaning of compressors and condensers

Compressors and condensers are important cooling components of the freezer. If they are stained with dust, it will affect the heat dissipation, shorten the service life and reduce the cooling effect of the freezer. Therefore, it is necessary to check regularly and clean it if it is dirty.