F13
Indesit Defrost Thermostat / Thermal Fuse Fault

F13 error, ice build-up, poor cooling, defrost seems irregular.

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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

Open defrost thermostat, Blown thermal fuse on evaporator, Poor contact with evaporator surface, Wiring damage in defrost circuit

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator before working near the evaporator and heater.

Step-by-step checks:

  • 1. Access evaporator: Remove freezer drawers and rear panel to expose evaporator and defrost components.
  • 2. Locate thermostat/fuse: Typically clipped to the evaporator tubing in a small round or oval housing, or in a heat-shrink capsule.
  • 3. Continuity test: Disconnect the thermostat/fuse and test for continuity at freezing temperature. An open reading indicates failure.
  • 4. Replace faulty device: Install the correct Indesit defrost thermostat or thermal fuse, ensuring firm contact with the evaporator and correct orientation.

When to call a technician: If the thermostat and fuse are good, the issue may lie in the control board or wiring and should be professionally checked.

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Repair Difficulty

Medium 3/5

Required Part

Defrost Thermostat / Thermal Fuse
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