Comet 9059 0025, Instruction Manual - Use And Maintenance

Page: 29 / 100

29
PROBLEMS CAUSES REMEDIES
The high pressure cleaner fails
to reach maximum pressure.
The regulation valve is set
for a pressure lower than the
maximum one.
Turn the pressure adjustment knob (8)
clockwise.
The nozzle is worn. Replace the nozzle as explained in the
“Routine Maintenance” paragraph.
The water supply (water
pressure or flow rate) is
insufficient.
Check if the tap is fully open and the
water mains flow rate or inlet water
pressure complies with the specifications
in the “Specifications and technical
data”
section.
Back-flow preventer fault. Refer to the relative manual.
No water comes out of the
nozzle or flow rate is poor.
No water. Check that the mains water tap is fully
open or the suction pipe can prime.
Water nozzle clogged. Clean and/or replace the nozzle as
explained in the “Routine Maintenance”
paragraph.
Pump priming is incomplete. Follow the instructions given in the
“Operation – Preliminary activities”
paragraph.
Back-flow preventer fault. Refer to the relative manual.
Water leaking from under the
high pressure cleaner.
Thermostatic valve triggered. Reduce the time the high pressure cleaner
stays in the by-pass operating mode
(see also the “Stopping operation”
paragraph).
Water leaking from under the
high pressure cleaner.
Relief valve triggered.
IF THIS HAPPENS PERSISTENTLY
DO NOT USE THE HIGH PRESSURE
C L E A N E R A N D C O N TA C T A
SPECIALIZED TECHNICIAN.
The high pressure cleaner
stops during operation.
Tripping of system cutout
device to which the high
pressure cleaner is connected
(fuse, RCCB, etc.).
Reset the cutout device.
IN CASE THIS TRIPS AGAIN, DO NOT
USE THE HIGH PRESSURE CLEANER
AND CONTACT A SPECIALIZED
TECHNICIAN.
Tripping of thermal protection
or ampere cut-out protection.
Follow the instructions of the
“Safety
devices”
paragraph.
When the master switch (1)
is turned notwithstanding the
push button (14) has been
pressed, the motor hums but
does not start.
Electrical system and/or
extension are inadequate.
Make sure the power line connection
instructions have been followed (see
the
Instruction manual – Safety
precautions
), and check the instructions
in the “Installation” paragraph.
EN