When to change the dust
compartment filter (for motor
protection)
Change the dustbag when the colour
marker in the dustbag change indicator
fills the display, or sooner if it is no
longer effective (see possible reasons
for this below).
Miele dustbags are disposable, and
designed for single use only.
Do not attempt to re-use them as
suction would be reduced.
Checking the dustbag change
indicator
^ Attach the standard floorhead to the
suction tube. Do not use any of the
other floorheads or attachments as
they will cause the dustbag change
indicator to give a false reading.
^ Switch the vacuum cleaner on and
select the highest power setting.
^ Lift the floorhead off the floor a little. If
the marker completely fills the
dustbag change indicator, you
should replace the dustbag with a
new one.
Maintenance and care
How the dustbag change indicator
works
The dustbag change indicator is set for
normal household dust. Normal
household dust would contain a mixture
of dust, hair, carpet fluff, threads, grit
etc.
However, if the vacuum cleaner has
been used to suck up fine dust, such
as plaster, brick dust, cement or flour,
the pores of the dustbag will become
blocked very quickly. This affects the
air permeability of the bag, and the
marker will indicate that the bag is "full"
even when it is not. If this happens you
must still change the dustbag because
suction power will be greatly reduced
by blocked pores in the dustbag.
If, on the other hand, you have
vacuumed up a lot of hair and carpet
fluff which typically contains a lot of air,
the indicator may fail to react even
though the bag is full. You should still
change it!
Both these extremes can occur.
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