Miele W1119I Operating Instructions Manual page 36

As a safeguard against scalding, the drum door cannot be opened if the wash
water temperature is over 130°F (55°C).
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Insert the plug into the outlet.
Turn on the washer using the "On/Off" button.
Deactivate the program lock as described in
"Locking the washer - Electronic program lock".
Deactivate the Child Safety Lock as described in
"Locking the washer - Child Safety Lock".
To open the the drum door, see "Frequently asked
questions - Opening the drum door during a power
failure."
Push on the drum door and at the same time, press
the "Door" button.
Clean the drain filter and the drain pump as
described in "Cleaning and Care - Cleaning the
drain pump".