Ariston Chronic Frost Accumulation

Excessive frost buildup on the back wall or around drawers; frost returns quickly after manual defrost.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Defrost heater failure, Defrost thermostat stuck open, Door gasket leaking, Door frequently left ajar

How to Fix / Troubleshooting

Safety first: Unplug the freezer before defrosting or accessing internal components.

  • Perform full manual defrost: Remove all food, unplug the unit, and allow all ice to melt. Use towels to absorb water.
  • Inspect door gasket: Check for gaps and replace if damaged.
  • Test defrost components: After defrosting, access the evaporator and test the defrost heater and thermostat with a multimeter. Replace any open components.
  • Avoid frequent door openings: Minimize warm, moist air entering the freezer.

When to call a technician: If frost returns within days, the electronic defrost control or sensors may require professional diagnosis.

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Repair Difficulty

Hard 4/5

Required Part

Defrost Heater
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