Miele H397BP2 Operating Instructions Manual page 12

The child safety lock can be activated
to prevent children from operating the
oven or to conserve standby power
when the oven will not be used for
some time (e.g. vacation).
The child safety lock is located below
the right side of the control panel, only
visible when the door is open.
^ Slide the lock to position "0".
The oven can not be operated now.
The clock will not be displayed.
^ Slide the lock to position "I".
The oven can now be used.
The clock will be displayed.
Note: If the child safety lock is activated
for more than 4 days, the oven clock
will have to be reset.
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