F2
Café
Oven Over-Temperature or Stuck Relay
Oven displays F2 and may beep; oven may overheat or shut down during bake or broil.
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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 airflow around oven causing overheating
How to Fix / Troubleshooting
Safety First: Turn off the oven and switch off the circuit breaker. Allow the oven to cool completely before inspection.
- Check for obvious overheating: Open the door and verify there are no melted liners, foil on the bottom, or blocked vents. Remove any foil that covers the oven floor or racks.
- Test the oven temperature sensor: Locate the sensor probe inside the oven (usually a thin metal rod at the back wall). With power off, remove the rear access panel and disconnect the sensor harness. Measure resistance with a multimeter: at room temperature (~77°F / 25°C) it should be about 1080 Ω. Replace if reading is far off spec or open/shorted.
- Inspect wiring: Check the harness from the sensor to the EOC for burns, cuts, or loose connectors. Repair or replace damaged wiring.
- Control board evaluation: If the sensor tests good and wiring is intact, the bake or broil relay on the electronic oven control (EOC) may be stuck closed. In this case, replace the EOC.
- Ventilation: Ensure cabinets around the Café oven allow proper airflow and that cooling fans (on wall ovens) are running during operation.
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Repair Difficulty
Hard
4/5
Required Part
Oven Temperature Sensor (RTD)
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