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Error code reference
Miele Washer Error Code F3
Heating failure-selected temperature not reached during allotted time or heating circuit malfunction.
SourceMiele W1900 Series Washers - Service Manual (6 Models)p. 52
Diagnostic procedure
The full F3 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 the heating control and power circuits, check Heater Relay(s), check Heater Element(s), check the Electronics.
SourceMiele W1900 Series Washers - Service Manual (6 Models)p. 52
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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