Miele CVA 4068 - Manual (Page 30)

System lock
The coffee system can be locked so
that it cannot be used by children or
those not familiar with the operating
instructions.
When the machine is locked, the timer
setting "Switch on at" will not work.
Activating/Deactivating the System
lock
^ Select "Settings
F", confirm with OK.
Settings
Safety
Water hardness
^ Use < or > to select "Safety", confirm
with OK.
^ Tap < or > until "System lock" is
highlighted, confirm with OK.
^ Use < or > to select "On", confirm
with OK.
As soon as the machine is turned off, it
will lock and cannot be turned back on.
A closed padlock
X and a message
will appear in the display, whenever a
button is touched.
To deactivate the system lock, follow
the same procedure as above, but
select "Off".
Overriding the system lock
^ Press and hold OK for approx.
3 seconds.
The machine is now temporarily
unlocked and can be used to prepare
beverages. It will lock again as soon
as it is turned off.
Water hardness
The hardness of the water used in the
coffee system must be determined and
programmed into the appliance. The
water hardness will determine how
frequently the unit must be descaled to
maintain the coffee system properly.
The machine monitors the volume of
water used (including the amount
required for producing steam), and will
then let you know when a descaling
cycle is necessary.
To measure the hardness of your water,
use the test strip that is included in your
installation kit.
^ Place the test strip under your
kitchen tap for a second and shake
off any remaining water. The result is
visible in about 1 minute.
If the water hardness is greater than
40 gr/gal (40°D), the water must be
descaled more often than displayed.
Calcium will build up faster than at a
lower water hardness and may
damage the machine.
Settings
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