Miele KM 452 Operating Instructions Manual page 16

^ Set the display to 0.
^ Then select the setting you want to
continue using by pressing the
touch control.
16
^ If 0 is showing in the display, keep
the touch control pressed until the
desired power setting shows in the
display, e.g. 4:
4
The same number of segments, q, will
show in the light ring, i.e. if setting 4 is
selected four segments will light up.
q