Miele TWB 120 WP Operating Instructions Manual page 16

Operating the tumble dryer
 Time display
The remaining program duration will be
displayed in hours and minutes.
With most program, the duration
displayed may vary or "jump". The
following factors, among others, affect
the program duration displayed: the
quantity of laundry, the type of fabric,
and the residual moisture in the laundry.
The electronic control continually
assesses conditions in the appliance
and then adjusts the program duration
with increasing accuracy.
    sensor buttons
– 
After touching the  sensor button,
a later start time for the program
(Delay Start) can be selected. Once
selected,  lights up brightly.
–  
The  or  sensor buttons are used
for selecting the duration of the delay
start period or the duration of the
Time Dry program.
 Start/Stop sensor button
Touching the Start/Stop sensor button
starts the selected program or cancels
a program that has already been
started. The sensor button flashes
slowly as soon as it is possible for a
program to be started and then lights
up constantly after the program has
started.
16
Drum lighting
The inside of the drum lights up so that
you don't forget any items of laundry
when you empty it.
The drum lighting switches off
automatically (energy saving).