Miele DA 5100 D Operating And Installation Instructions page 16

Operation
If the grease filter timer lights blue, a
different timer was activated which is
not needed.
Deactivating the blue indicator
The fan must be off.
^ Press the "+" and the grease filter
button at the same time.
The grease filter indicator lights blue
and one "–/+" indicator flashes.
^ Press "+" until the fourth "–/+"
indicator lights.
^ Confirm the selection with the grease
filter button.
All indicators will go out.
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