8
5 After using your Roof Cleaner
5.1 Cleaning
Flush the cleaner with clean wa-
ter by sucking from e.g. a water
bucket instead of the detergent
bottle.
Flush until all detergent has
been removed from the system.
5.2 Storing
Remove the detergent hose and
high pressure hose.
Reduce the length of the tele-
scopic lance to a minimum
Store the Roof Cleaner in a
frost-free room.
6 Trouble shooting
To avoid unnecessary disappointments, you should check the following before contacting the Nilfisk
service organization:
Symptom
Cause
Recommended action
Water coming out underneath
nozzle
Safety valve open
Nozzle blocked.
O-rings damaged
Wrong nozzle inserted
Check nozzle
Contact your nearest Nilfisk
Service Centre
No detergent suction
Detergent valve closed
Suction strainer clogged
Detergent hose leaking
Open detergent valve
Clean strainer
Check and replace hose
No or smaller jet is coming out
from the Roof Cleaner
Water supply not sufficient
Check that the high pressure
washer is turned on and
the water supply to the machine
is sufficient
