Karcher Unità d'irrigazione WU 90-72 - Manual (Page 25)

English 25
Troubleshooting
Fault Cause Remedy
Display does not
turn on. Battery depleted. Insert a new 9V
battery (type
6LR61 / Alkaline).
Battery contacts oxi-
dized. Clean the con-
tacts.
Display completely
or partially dark. Ambient temperatures
too high. Protect the irriga-
tion device from
high tempera-
tures.
The irrigation does
not take place in
spite of the pro-
gramming. Water tap is closed. Open tap.
Battery depleted. Insert a new 9V
battery (type
6LR61 / Alkaline).
Battery contacts oxi-
dized. Clean the con-
tacts.
Filter gaskets blocked. Clean the filter
gasket.