Miele Dishwasher Error Code F26

F26Miele Dishwasher

What this code means

Boiling protection - temperature exceeded safe limit. Possible causes: Temperature at NTC sensor exceeded 90°C (194°F); NTC temperature sensor providing inaccurate readings; Heater relay stuck closed

Next steps: diagnose the root cause

1
Verify the error code is active

Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.

2
Get the full diagnostic procedure

Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.

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