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Error code reference
Miele Dishwasher Error Code F03
Water in the wash cabinet does not heat up; the programme takes too long (heater-related fault).
SourceMiele G 7860 Commercial Dishwasher - Operating Instructionsp. 43
Diagnostic procedure
The full F03 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
Remove the cause of the fault, take off the service panel, and press the reset button on the heater limiter (reddish brown) located on the left-hand side of the plinth.
SourceMiele G 7860 Commercial Dishwasher - Operating Instructionsp. 43
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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