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Error code reference
Bosch Washer Error Code F:42
Uncontrolled run-up of drum motor - control Triac is broken (remanent error).
SourceBosch Washer - Service Manual: Test Programs & Coding (F20-E)p. 7
Diagnostic procedure
The full F:42 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
Reset error by activating test mode, check control.
SourceBosch Washer - Service Manual: Test Programs & Coding (F20-E)p. 7
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
2 manuals in the MyPros+ library document this code for Bosch washer.
Models covered by the manuals that document this code
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