9
TROUBLESHOOTING
Problem Possible causes Remedy
Pump does not reach working
pressure
Nozzle worn Replace nozzle
Water lter fouled Clean lter (g.5)
Water supply pressure low Turn on water supply tap fully
Air being sucked into system Check tightness of hose ttings
Air in pump
Switch o the appliance and keep depressing and releas-
ing the gun trigger until the water comes out in a steady
ow. Switch the appliance back on again.
Adjustable nozzle not positioned correctly Turn the adjustable nozzle (E) (+) (g.3)
Pressure drops during use
Water intake from external tank Connect appliance to the mains water supply
Intake water too hot Reduce temperature
Nozzle clogged Clean nozzle (g.5)
Motor “sounds” but fails to start
Insucient power supply
Check that the voltage of the mains power supply line is
the same as that on the plate (g.2)
Voltage loss due to use of extension cable Check characteristics of extension cable
Appliance not used for a long period of time Contact your nearest Authorized Service Centre
Problems with AS device Contact your nearest Authorized Service Centre
Motor fails to start
No electrical power
Check that the plug is rmly in the socket and that the
mains voltage supply is present (*)
Problems with AS device Contact your nearest Authorized Service Centre
Appliance not used for a long period of time
Using the tool (L) unjam the motor from the hole at the
rear of the appliance (in models with this feature) (g.5)
Water leakage Seals worn
Have the seals replaced at your nearest Authorized
Service Centre
Appliance noisy Water too hot Reduce temperature (see technical data
Oil leakage Seals worn Contact your nearest Authorized Service Centre
AS versions only: motor starts
even with gun trigger is released
Nozzle clogged Clean nozzle (g.5)
High pressure system or pump hydraulic circuit not
watertight
Contact your nearest Authorized Service Centre
AS versions only: no water delivery
when gun trigger is depressed
(with supply hose connected)
Nozzle clogged Clean nozzle (g.5)
If the motor starts and does not restart during operation, wait 2-3 minutes before repeating the start-up procedure (overload cutout has been tripped).
If the problem recurs more than once, contact your nearest Authorized Service Centre.
