Miele S 4781 Operating Instructions Manual - Page 24
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Maintenance and care
When to change the exhaust
filter
Depending on the model, your vacuum
cleaner will be fitted as standard with
one of the following exhaust filters:
a Super Air Clean filter,
Replace this filter every time you start a
new packet of Miele dustbags. A Super
Air Clean exhaust filter and a dust
compartment filter are supplied with
every packet of Miele dustbags.
b Active Air Clean (black)
c Active HEPA (blue)
These types of filter need to be
changed approx. once a year. Make a
note of the date on the filter.
Exhaust filter change indicator
Certain models are fitted with an
exhaust filter change indicator (reset
control) to show when to change your
Active Air Clean b or Active HEPA c
filter.
The indicator lights up after approx. 50
hours of operation which is equivalent
to about a year of average use. You
can continue vacuuming when the light
comes on. However, the suction power
will be reduced as will the effectiveness
of the filter if it is not replaced in good
time.
The filter change indicator light is
irrelevant if a Super Air Clean filter (a) is
being used, as long as it is replaced
every time a new packet of Miele
dustbags is started. The indicator light
will go out when the reset button is
pressed.
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