Troubleshooting – Karcher Centralina irrigazione WT 4-000 User Manual
Page 23
 
English
23
Our Kärcher branch will be pleased to help you further in the case of 
questions or faults. See address on the reverse.
Troubleshooting
Fault
Cause
Remedy
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 oxidized.
Clean the contacts.
Filter gaskets blocked.
Clean the filter gasket.
Irrigation programme inter-
rupted manually. Regulator 
for irrigation duration set to 
OFF.
Set the regulator for the 
irrigation duration to the 
desired duration, e.g. 
15 minutes.
Leakage at the wa-
ter connection.
Filter gasket defective.
Replace the filter gas-
ket.
The water connection at the 
water tap has become 
loose.
Reconnect the water 
connection.