Miele H 255 Operating Instructions Manual page 13

Safety feature
The operating lock can be activated to
prevent the oven or hob being
switched on unintentionally, by children
for example.
The oven function selector must be
at the "0" setting.
Press the "p" button until the key sym-
bol appears in the display field.
The oven (and cooking zones if applic-
able) can now not be switched on.
Turn the oven function selector to any
oven function.
Press the "p" until the key symbol in the
display field disappears.
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