Miele NOVOTRONIC W 1966 Operating Instructions Manual page 34

To protect from scalding the drum door can not be opened if the wash water
temperature is over 55°C.
30
Insert the plug into the outlet.
Turn on the washer using the "On/Off" button.
Deactivate the child safety lock as described in
"Locking the washer."
Deactivate the electronic safety lock as described
in "Locking the washer."
Push on the drum door and at the same time press
the "Door" button.
Clean the lint trap and the drain pump.
See "Washer care".
Select a spin speed to continue the program. Once
the program ends you will be able to open the
door.
Turn the program selector to "Drain/Spin". Select a
spin speed and press "START". Once the program
ends you will be able to open the door.