Miele CVA 3660 Operating And Installation Instructions page 37

To deactivate the system lock
Settings: Customising your machine
^ Select "System lock" with the arrow sensors and touch the
OK sensor.
A tick will appear to show if the system lock is activated or
deactivated.
^ Select "On" with the arrow sensors and touch the OK
sensor.
^ A message will appear in the display to tell you that the
system lock is activated. Confirm the message by touching
the OK sensor.
The machine will now lock as soon as it is switched off and
cannot be switched on again. A closed lock symbol X will
appear in the display.
^ Touch the OK sensor for approx. 3 seconds until
"Heating-up phase" appears in the display.
The machine is now unlocked and can be used to make
drinks again.
However, it will lock again as soon as you switch it off. If you
want to cancel the system lock:
^ Select "Settings" with the arrow sensors and touch the OK
sensor.
^ Select "Safety" with the arrow sensors and touch the OK
sensor.
^ Select "System lock" with the arrow sensors and touch the
OK sensor.
^ Select "Off" with the arrow sensors and touch the OK
sensor.
The system lock is now deactivated.
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