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Error code reference
Bosch Refrigerator Error Code F51
The value of the reference measurement for the finger protection was too high (measured value too high even though no LED was lit).
SourceBosch Refrigerator - Service Manual: IK 300/302 Series
Diagnostic procedure
The full F51 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
1
First diagnostic step
Check for too much external light; check if an LED is on.
SourceBosch Refrigerator - Service Manual: IK 300/302 Series
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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