Crack Sounds From Refrigerator

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You may hear a popping and/or hissing noise when the refrigerator is in an automatic defrost cycle. In this mode, the compressor is off and a heater is energized below the evaporator to melt off frost and ice buildup on the fins of the evaporator. The condensate can drip down and hit the heater to cause a popping noise. A cracking or popping noise can also be sometimes heard when the ice maker is ejecting ice. A heater in the mold of the ice maker will energize during the ejection process.

Popping or cracking sounds can be made as the ice is heated and the ejection blades push the ice out of the mold. Expansion and contraction of metallic surfaces can sometimes make popping or cracking noises in the refrigerator. If the refrigerator and freezer are both cooling properly, then the occasional popping noises are likely normal.

Troubleshooting; Fridge Freezers; Last Updated. A cracking noise can be heard when the parts of the freezer expand or contract due to the.