Miele PG 8056 Operating Instructions Manual page 19

Operation tips
System messages The  symbol indicates a system message. These messages provide
information about current processes and the status of the
dishwasher. System messages are displayed individually at the end of
the program. If there are multiple system messages, the additional
messages can be displayed by pressing the OK button. A system
message can be accessed again during a program cycle by pressing
OK.
Example:

Refill salt
OK
Automatic switch-off
The dishwasher has an automatic switch-off function. The
dishwasher switches itself off automatically once the set time has
expired. The display and all other LEDs are switched off. To switch
the dishwasher on press the  (On/Off) button.
The automatic switch-off function can be disabled (see "Additional
settings, Switch off after"). The display will then remain active in
standby mode.
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