Grohe DESIGN + ENGINEERING 36 407 Notice D'utilisation page 142

Interval of automatic flushing
Interval at which the automatic flushing is repeated.
h
Urinal factory setting: 1 day
WC factory setting: 3 days
Activate function.
ZhE
d/D
Indicator lamp:       
KE K&&
hdK hdK
Set interval to 1 day.
ZhE
Z ^ d d ^d
Indicator lamp:
d/D
   
Set interval to 3 days.
Indicator lamp:
     
Deactivate function after 10 s.
Indicator lamp:    
141