Miele PG 8056 Operating Instructions Manual page 17

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