Indesit Cooling fan overrun or control issue

Microwave continues to run the fan for a very long time after cooking has finished.

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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

High internal temperature, Stuck fan relay on PCB, Faulty temperature sensor, Control board logic fault

How to Fix / Troubleshooting

Safety first: Running the fan after cooking is normal for cooling, but excessively long operation may indicate a fault.

  • Step 1 – Allow full cool‑down: After heavy use (especially grill/convection), it is normal for the fan to run for several minutes. Monitor if it eventually stops.
  • Step 2 – Check ventilation: Ensure vents are clear and the microwave is not built‑in without the correct trim kit.
  • Step 3 – Power reset: If the fan never stops, unplug the microwave for 10 minutes, reconnect, and observe behaviour.
  • Step 4 – Sensor and relay check (advanced): A technician can test the cavity temperature sensor and fan relay on the PCB. Replace faulty components as needed.

Note: Continuous fan operation with the oven cold usually points to a control or sensor fault.

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Repair Difficulty

Medium 3/5

Required Part

Cavity Temperature Sensor (NTC)
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