Insignia Cool-Down Cycle Control Anomaly

Air fryer fan continues to run for an unusually long time after cooking ends.

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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

Stuck relay or triac controlling fan, Firmware glitch, Overheated internal components requiring extended cooling, Faulty temperature sensor reading high

How to Fix / Troubleshooting

Safety first: It is normal for some models to run the fan briefly after cooking. If it runs excessively long (e.g., over 15–20 minutes), unplug the unit.

Steps to troubleshoot extended fan run:

  • 1. Observe pattern: Note whether the fan always runs long or only after high-temperature cycles.
  • 2. Power reset: Unplug for 10 minutes to clear any firmware lockup.
  • 3. Check temperature sensor: If the sensor reads falsely high, the control may keep the fan on. Inspect and test the NTC sensor; replace if out of spec.
  • 4. Inspect control board: Look for a stuck fan relay or triac. If the fan receives power even when the unit is off, replace the main control board.

Warning: Do not disconnect the fan while the unit is hot; it is needed to cool internal components.

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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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