A creaking noise coming from your refrigerator can be caused by various factors. Here are some common reasons for creaking or cracking noises in refrigerators:
Expansion and contraction of materials
Refrigerators go through temperature changes as they cycle on and off. This can cause the materials in the appliance to expand and contract, leading to creaking or popping sounds.
Materials, especially metals and plastics used in the construction of refrigerators, expand when exposed to higher temperatures and contract when cooled. As the refrigerator’s cooling system cycles on and off to maintain the desired temperature inside, the internal components, such as coils, pipes, and panels, go through these temperature changes.
This is often normal and not a cause for concern. However, if these sounds become excessively loud or change in intensity, it could be an indication of other issues, such as loose components, worn-out parts, or problems with the refrigeration system.
If your refrigerator is not on a level surface, it may create stress on the internal components, causing creaking noises. Ensure that the refrigerator is on a stable and level surface to minimize such sounds.
Many refrigerators have adjustable feet to level the appliance. If these feet are not properly adjusted, it can result in creaking noises. Check and adjust the feet as needed.
Vibrations and movement during operation can sometimes cause internal parts to become loose. Check for any loose components, such as shelves, drawers, or other internal elements, and secure them properly.
In some cases, ice build-up in the freezer or around the evaporator fan can cause creaking or cracking sounds.
As ice forms on various components inside the refrigerator, such as the evaporator coils or freezer walls, it expands. During the defrost cycle or when the temperature rises slightly, the ice contracts. This expansion and contraction can result in cracking or popping sounds.
As more ice accumulates, it can create pressure and cause the existing ice to shift. This movement can produce sounds as the ice moves against other surfaces or existing ice layers.
Regularly defrosting your freezer and checking for ice accumulation can help prevent this issue.
The flow of refrigerant through the coils may also produce some noise. This is generally a normal operational sound. However, if the noise is excessive or accompanied by other issues, it’s a good idea to call a professional technician.
The compressor, which is responsible for cooling the refrigerator, can sometimes produce noise during operation. This is another normal sound, but if it becomes unusually loud or changes in pitch, it could indicate a problem that requires professional attention.
If the troubleshooting steps above don’t resolve the issue, and the loud noises persist, it’s advisable to contact a professional appliance repair service. Attempting to disassemble or repair certain components without the necessary expertise could lead to further damage.