Indesit Automatic Defrost System Failure

Excessive frost or ice build-up in the freezer, needing frequent manual defrosting.

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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

Failed defrost heater, Defective defrost thermostat/thermal fuse, Faulty defrost timer or control board, Door gasket leaking warm air

How to Fix / Troubleshooting

Safety first: Unplug the appliance before accessing the evaporator and electrical components.

Step-by-step checks:

  • 1. Full manual defrost: Turn off the refrigerator and leave doors open for 12–24 hours to melt all ice. Protect the floor with towels.
  • 2. Inspect door seals: Check for gaps or tears in the freezer gasket that could allow moist air in.
  • 3. Test defrost components: After defrosting, access the evaporator and test the heater and thermostat as described in defrost-related entries.

When to call a technician: If heater and thermostat are good, the control board or defrost timer logic may be faulty and require professional replacement.

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Repair Difficulty

Hard 4/5

Required Part

Defrost Heater Assembly
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