Troubleshooting Fridge Freezers. Facebook Share Twitter. The freezer makes a cracking noise. Fluctuates, causing cracking noises.
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Why does the freezer make a cracking noise?Symptom1. The freezer makes a cracking noise.Cause1. A cracking noise can be heard when the parts of the freezer expand or contract due to the temperature changes.2. The heater melts the frost that has formed on cooler every 7 hours.The metallic material and ice expand and contract as the temperaturefluctuates, causing cracking noises.3. Please be assured that it is a sign of normal operation.How to fix1. A cracking noise from the freezer is a sign of normal operation.2. Also refer to the user’s manual for this phenomenon.Frost on evaporator※ Noise may be frequently heard with a new product, and it will subside gradually (6 months-1 year)00000000.
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The researchers placed vibration (a), acoustic (p) and temperature (T) sensors around a fridge shown aboveDr Koruk said: 'The contraction and expansion due to rapid temperature changes create thermal stresses in the materials and eventually these burst type sounds occur.' He said the vibrations created by the cracking noises were highest in the plastic heater panel that sits beside the heater.He added: 'The heater causes the temperature of the heater panel to increase very rapidly at the beginning of the defrost process and its temperature decreases when also the defrost process is completed and the refrigerator starts to cool itself.' Due to the rapid temperature changes, contraction and expansion create thermal stresses in the materials.'
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March 2023
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