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TROUBLESHOOTING
Problem Possible causes Remedy
Pump does not reach working
pressure
Nozzle worn Replace nozzle
Water filter fouled Clean filter (L) (fig.5)
Insufficient water supply Turn on water supply tap fully
Air being sucked into system Check tightness of hose fittings
Air in pump
Switch off the appliance and keep depressing and releas
-
ing the gun trigger until the water comes out in a steady
flow. Switch the appliance back on again.
Water being sucked from an open container from a
height of more than 0.5 m.
Reduce the suction height.
Pump pressure drops suddenly
during use
Water being sucked from an external tank Connect appliance to the mains water supply
Inlet water too hot Reduce temperature
Nozzle clogged Clean nozzle (fig.5)
Inlet filter (L) fouled Clean filter (L) (fig.5)
Motor “buzzes" but fails to start
Power supply voltage too low
Check that the voltage of the mains power supply line is
the same as that on the plate (fig.2)
Voltage drop due to use of extension cable Check characteristics of extension cable
Appliance not used for a long period of time Contact your nearest Authorised Service Centre
Problems with TSS device Contact your nearest Authorised Service Centre
Motor fails to start
No electrical power
Check that the plug is firmly in the socket and that the
mains voltage supply is present (*)
Problems with TSS device Contact your nearest Authorised Service Centre
Water leakage Seals worn
Have the seals replaced at your nearest Authorised
Service Centre
Appliance noisy Water too hot Reduce temperature (see technical data)
Oil leakage Seals worn Contact your nearest Authorised Service Centre
Appliance starts even with gun
trigger released
High pressure system or pump circuit not watertight Contact your nearest Authorised Service Centre
No water delivery when gun trig
-
ger is depressed (with supply hose
connected)
Nozzle clogged Clean nozzle (fig.5)
No detergent sucked in
Detergent too dense Dilute with water
Deposits or restriction in detergent circuit
Flush with clean water and eliminate any restrictions. If the
problem persists, contact an Authorised Service Centre
(*) If the motor stops 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 Authorised Service Centre.
MODEL SERIAL NUMBER
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