F8
Insignia
Cooling fan or fan circuit fault
Oven displays F8; cooling fan may run continuously or not at all.
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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 cooling fan motor, Open or shorted cooling fan wiring, Faulty fan relay on control board, Blocked cooling air passages
How to Fix / Troubleshooting
Safety First: Disconnect power before accessing internal components. Sharp metal edges are present.
- Listen for fan operation: When the oven is on and hot, the cooling fan should run. If F8 appears and the fan is silent, suspect the fan or its circuit.
- Access fan: Remove the rear panel to locate the cooling fan assembly. Check for obstructions (insulation, wiring) preventing the fan from turning.
- Test fan motor: With power off, disconnect the fan and measure resistance across the motor terminals. An open circuit indicates a failed motor that must be replaced.
- Check wiring and connectors: Inspect the harness from the fan to the control board for burns, loose connectors, or pinched wires. Repair as needed.
- Control board relay: If the fan motor tests good and wiring is intact, the fan relay on the electronic oven control board may be defective, requiring board replacement.
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Repair Difficulty
Hard
4/5
Required Part
Cooling Fan Motor
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