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Problem Possible Causes Solution
Pump does not reach working
pressure
Nozzle worn Replace nozzle
Water lter fouled
Clean filter (Fig. H)
Water supply pressure low Turn on water supply tap fully
Air being sucked into system Check the adjustment of the hose coupling
Air in pump
Switch o the appliance and keep
depressing and releasing the gun trigger
until the water comes out in a steady flow.
Switch the appliance back on again.
Adjustable nozzle not positioned correctly
Turn the adjustable nozzle (Fig. D)
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 (Fig. F)
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
(Fig. B)
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 Auto Stop 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 Auto Stop device
Contact your nearest Authorized Service
Centre
Appliance not used for a long period of
time
Using the tool (11) unjam the motor from the
hole at the rear of the appliance (In models
with this feature) (Fig. H)
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 (Fig. F)
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 (Fig. F)
* 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.