F2
Bosch Oven Overtemperature / Runaway Temperature

Bosch range oven shows F2 during or after a bake or self-clean cycle; oven may overheat.

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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, Stuck relay on control board, Cooling fan failure (for electric), Blocked oven vents

How to Fix / Troubleshooting

Safety first: Turn off power immediately if the oven is overheating. Do not open the door if there is visible smoke; allow it to cool.

  • Allow cooling: Let the oven cool completely, then restore power and see if F2 reappears.
  • Test sensor: Measure the oven temperature sensor resistance at room temperature. Replace if out of specification.
  • Check cooling fan (electric ranges): Run a bake cycle and listen for the internal cooling fan. If it does not run, test and replace the fan motor.
  • Replace control board: If the sensor and fan are good but the oven overheats or F2 persists, the electronic oven control may have a stuck relay and should be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Electronic Oven Control
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