f26
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Miele · Dishwashers
Boiling protection activated - water overheated
Quick Answer
Error code F26 on your Miele Dishwashers means: Boiling protection activated - water overheated. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Immediately turn off the dishwasher and disconnect from power.
2
Allow the dishwasher to cool completely before any inspection.
3
Do not attempt to repair this yourself - call a qualified technician.
4
The NTC sensor, heater relay, and control board all need inspection.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
NTC temperature sensor
Heater relay
Control board
Thermal fuse
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