Melitta Purista, Operating Instructions Manual, Page: 48 / 308

Care and maintenance
48
GB
Information
If the descaling programme has been
interrupted, e.g. by unintentionally switch-
ing the appliance off, you must switch
the appliance on again and follow the
instructions from step 9. The appliance is
then ready for operation, even if it has not
been completely descaled. For complete
descaling, you must run the descaling
programme from the beginning.
7.5 Using a water filter
The use of a water filter extends the ser-
vice life of the appliance and the appliance
has to be descaled less frequently. The
water filter filters calcium and other pollut-
ants out of the water.
Only use Melitta® Pro Aqua filter cartridges
for fully automatic coffee machines.
Observe the processing instructions on
the packaging of the water filter.
Information
When using and regularly replacing the
Melitta® Pro Aqua filter cartridge, the
appliance only needs to be descaled once
a year.
This information is based on an average
of 6 coffee beverages with 120 ml per day
and 6 filter changes per year.
1
21
22
Fig. 15: Screwing/Unscrewing the water
filter
The water filter (21) is screwed into and
unscrewed from the thread (22) on the
base of the water tank (1).
Information
The water filter should not be left standing
dry for a long period of time. When it is
not used for a long time, we recommend
storing the water filter in a vessel filled
with tap water in the refrigerator.
Inserting the water filter
Requirement: The appliance is ready for
operation.
1.
Press the "Service" button for
more than 2 seconds to call up Service
mode 1.
2.
Press the "Service" button
repeatedly until the display for the Filter
function appears.
3.
Press the "Coffee strength"
button until one bean lights up.
4. Follow the instructions from step 3 in
section Changing the water filter .
Changing the water filter
In order to maintain a constant effect of
the water filter, we recommend changing
the water filter every 2 months – or when
the device requests you to do so.
The Filter display light requests you to
change the water filter.
Information
ū The water hardness cannot be set if you
use a water filter. The water hardness is
automatically set to soft (see sec-
tion 6.3 Setting the water hardness on
page 41).
ū Place the water filter into a vessel filled
with fresh tap water for a few minutes
before inserting it.