> Remove the magnetic key.
Two short signal tones will sound, and then service programme S4
will be selected.
> Within four seconds, hold the magnetic key in front of the right-
hand sensor again.
Two short signal tones will sound to confirm the reset.
> Remove the magnetic key.
Factory settings are active.
See Chapters 5.1 and 5.2 for instructions on how to select the flush-
ing programme and set the flush duration.
48
2x
S4
2x
1
2
3 4
s