Error code reference
Bosch Oven Error Code F31
Upper (or single) oven temperature sensor failure due to an open or short circuit in the sensor wiring.
Upper (or single) oven temperature sensor failure due to an open or short circuit in the sensor wiring.
First step from the service manual
Check all connections, especially P4 on the Power Board.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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