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Error code reference
Wolf Oven Error Code E42
Water temperature sensor with too high resistance (temp < approx. 14°F/-10°C), indicating break or loose contact in water temperature sensor or wiring.
SourceWolf CSO24 & CSO30-2 (9001333): Serials 13508347 to 13543125: Service Manualp. 5-5
Diagnostic procedure
The full E42 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 break or loose contact in water temperature sensor or wiring.
SourceWolf CSO24 & CSO30-2 (9001333): Serials 13508347 to 13543125: Service Manualp. 5-5
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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