The freezer is buzzing - that may be the reason

Freezers never operate silently. Older freezers in particular are easy to hear compared to modern devices. If the operating noises are louder than usual, a technical malfunction may be the reason. You can fix small errors yourself.

Normal cooling noises

Freezers make noises all the time when they are in use. Older devices are a bit louder. The newer models work very quietly. Compressors and refrigeration technology are installed here to be particularly soundproof.

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The compressor motor makes a humming sound. When the engine is switched on, the sound is louder for a short period of time. If you perceive bubbling or gurgling sounds, you will hear, as in the pipes the refrigerant flows. A light noise is based on circulating air flows that provide ice-freedom in no-frost freezers for ice clearance.

If the noise level of the freezer changes significantly, a technical fault may be available. Here is in any case the demand for customer service advisable.

Comparative values for a quiet freezer (33 - 37 decibels)

  • Vacuum cleaner 70 decibels
  • Library 40 decibels
  • Autohupe 50 decibels
  • Whisper 20 decibels
  • Normal breathing noise 10 decibels

New freezers are provided with an energy label, which also provides information about the volume of the device. The sound power, which is measured directly on the freezer is specified. The modern devices should not disturb in open residential dining areas due to overly loud operating noise.

Causes of interference noises

In the event of interference noises you should find out the cause as soon as possible. If the device is on an uneven surface, the cooling liquid cannot be evenly distributed in the operating system. The freezer makes more noises. Use a spirit level to realign the feet of the device or remove unevenness by placing a piece of cardboard under it.

The freezer needs to be at least ten centimeters away from the wall. If the air circulation is obstructed, the device increases the motor output of the compressor and becomes correspondingly loud. If the back of the freezer is close to the wall or the side panels are against other furniture, the device vibration is transmitted to the environment. This also leads to the development of noise.

Tips & Tricks Each user perceives the volume on the freezer differently. Physics differentiates between sound power and sound pressure. Sound power is generated on the device and can be measured objectively. Sound pressure is the subjectively perceived sound by the receiver. Sensitive people experience noises louder.

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