F2
Insignia
Oven Over-Temperature or Stuck Relay
Oven overheats, display shows F2, sometimes accompanied by a continuous beep and strong heat even after turning oven off.
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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 oven temperature sensor (RTD), Stuck bake or broil relay on EOC, Poor sensor harness connection, Shorted sensor wiring harness
How to Fix / Troubleshooting
Safety first: Turn the oven OFF, then shut off power at the breaker. The interior may be extremely hot; allow it to cool completely before working.
- Visual check: Inspect the oven cavity for foil covering the bottom, blocked vents, or heavy grease buildup that can trap heat. Remove any foil and clean vents.
- Check oven temperature sensor: Locate the temperature sensor probe at the back wall of the oven interior. With power OFF, remove the mounting screws and gently pull the sensor forward to access the connector. Disconnect and test with a multimeter: at room temperature (~77°F/25°C) it should read about 1080–1100 Ω. Replace if open, shorted, or far out of range.
- Inspect sensor wiring: Check the harness from the sensor to the EOC for pinched, burned, or shorted wires. Repair or replace damaged wiring.
- Control board relay check: If the oven continues heating even when OFF, the bake or broil relay on the EOC is likely welded closed. Replace the EOC board.
- Test operation: Restore power and run a 350°F bake cycle. If temperature quickly overshoots or F2 returns, recheck sensor and replace the EOC if not already done.
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Repair Difficulty
Hard
4/5
Required Part
Oven Temperature Sensor
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