Error code reference

Bosch Range Error Code F31

Oven temperature sensor failure (open) when cook or clean is programmed; fault limit 20 seconds to avoid erroneous faults due to line noise on long sensor wires.

SourceBosch Range - Training Manual: FSR, FSR3, SIR Modelsp. 72

Bosch codes Bosch range codes

Diagnostic procedure

The full F31 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check resistance at room temperature; if less than 500 ohms, replace RTD sensor probe. Check for shorted sensor probe harness between control module and probe connector.

SourceBosch 300 & 500 Series Gas Ranges - Service Manual3:2

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

9 manuals in the MyPros+ library document this code for Bosch range.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full F31 procedure

Where this code is documented

Models covered by the manuals that document this code

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