F1
Bosch
Oven Temperature Sensor / Control Error
Bosch range oven display shows F1 and beeps continuously; oven functions may be disabled.
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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
Open or shorted oven temperature sensor (RTD), Damaged sensor wiring, Faulty electronic oven control (EOC), Loose connector at control board
How to Fix / Troubleshooting
Safety first: Disconnect power at the breaker before accessing the rear of the range or control panel.
- Power reset: Turn off power for 5 minutes, then restore. If F1 returns immediately, proceed with sensor checks.
- Check sensor resistance: Access the oven temperature sensor from inside the oven (rear wall) or from the back panel. Disconnect and measure resistance at room temperature (typically ~1080 ohms at 21°C for many Bosch sensors). Replace if open, shorted, or out of spec.
- Inspect wiring: Follow the sensor harness to the control board. Ensure connectors are tight and wires are not pinched or burned.
- Replace control board: If the sensor and wiring are good, replace the electronic oven control (EOC).
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Repair Difficulty
Hard
4/5
Required Part
Oven Temperature Sensor
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