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Nozzle worn Replace nozzle
Water filter fouled Clean filter (fig.5)
Water supply pressure low Turn on water supply tap fully
Air being sucked into system Check tightness of hose fittings
Pump does not reach Air in pump Switch off the appliance and keep depressing and
working pressure releasing the gun trigger until the water comes out in
a steady flow. Switch the appliance back on again.
Adjustable nozzle not Turn the adjustable
positioned correctly nozzle (E) (+) (fig.3)
Thermostatic valve tripped Wait for correct water temperature to be restored
Water intake from external tank Connect appliance to the mains water supply
Pressure drops during use Intake water too hot Reduce temperature
Nozzle clogged Clean nozzle (fig.5)
Intake filter (L) dirty Clean filter (L) (fig.5)
Insufficient power supply Check that the voltage of the mains power
supply line is the same as that on the plate (fig.2)
Voltage loss due to use of Check characteristics of extension cable
Motor “sounds” but fails to start extension cable
Appliance not used for a Contact your nearest Authorized Service Centre
long period of time
Problems with TSS device Contact your nearest Authorized Service Centre
No electrical power Check that the plug is firmly in the socket
and that the mains voltage supply is present (*)
Motor fails to start Problems with TSS device Contact your nearest Authorized Service Centre
Appliance not used for a Using the tool (L) unjam the motor
long period of time from the hole at the rear of the appliance
(in models with this feature) (fig.5)
Seals worn Have the seals replaced at your nearest
Water leakage Authorized Service Centre
Safety valve tripped and discharging Contact an Authorized Service Centre
Appliance noisy Water too hot Reduce temperature (see technical data
Oil leakage Seals worn Contact your nearest Authorized Service Centre
Nozzle clogged Clean nozzle (fig.5)
TSS versions only: motor starts
even with gun trigger is released High pressure system or pump Contact your nearest Authorized Service Centre
hydraulic circuit not watertight
TSS versions only: no water
delivery when gun trigger is Nozzle clogged Clean nozzle (fig.5)
depressed (with supply hose
connected)
Adjustable nozzle on high pressure setting Set nozzle on "-" setting (fig.5)
Detergent too dense Dilute with water
No detergent taken in High pressure hose extension being used Fit original hose
Deposits or restriction in detergent circuit Flush with clean water and eliminate any restrictions.
If the problem persists, contact an Authorized Service Centre
Troubleshooting
Problem Possible causes Remedy
(*) 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.