Miele DA 6996 W Operating And Installation Instructions page 30

Cleaning and care
After cleaning
 After cleaning, leave the filter to dry
on an absorbent surface before
replacing it.
 When removing the panel and grease
filter for cleaning, also clean off any
residues of oil or fat from the now
accessible parts of the casing to
prevent the risk of these catching fire.
 Replace the drip tray.
 Replace the grease filter, making sure
that the locking clip is facing
outwards.
 If the grease filter is inadvertently
replaced the wrong way round, insert
a small screwdriver blade into the slit
to disengage the clip.
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 Hook the panel in at the top and then
push it into position at the bottom.
Resetting the grease filter operating
hours counter
After cleaning, the operating hours
counter needs to be re-set.
 Whilst the fan is switched on, press
the operating hours control  for
approx. 3 seconds, until only the 1 is
flashing.
The Grease filter symbol  goes out.
If you want to clean the grease filter
before the operating hours counter has
reached its maximum:
 Press the operating hours control
 for approx. 6 seconds, until only
the 1 is flashing.