TROUBLESHOOTING
Problem
Pump does not reach working
pressure
Pump pressure drops during
suddenly use
Motor "buzzes" but fails to start
Motor fails to start
Water leakages
Appliance noisy
Oil leakages
TSS versions only: appliance starts
even with gun trigger released
TSS versions only: no water delivery
when gun trigger is depressed (with
supply hose connected)
Possible causes
Nozzle worn
Water fi lter fouled
Insuffi cient water supply
Air being sucked into system
Air in pump
Adjustable nozzle not positioned
correctly
Thermostatic valve tripped
Water being sucked from an open
container from a height of more than
0.5 m.
Water being sucked from an external
tank
Inlet water too hot
Nozzle clogged
Inlet fi lter (L) fouled
Power supply voltage too low
Voltage drop due to use of extension
cable
Appliance not used for a long period
of time
Problems with TSS device
No electrical power
Problems with TSS device
Appliance not used for a long period
of time
Seals worn
Safety valve tripped and discharging
Water too hot
Seals worn
High pressure system or pump circuit
not watertight
Nozzle clogged
ENGLISH
Remedy
Replace nozzle
Clean fi lter (L) (fi g.5)
Turn on water supply tap fully
Check tightness of hose fi ttings
Switch off the appliance and keep
depressing and releasing the gun
trigger until the water comes out in
a steady fl ow. Switch the appliance
back on again.
Set nozzle (E) on (+) setting (fi g.3)
Wait for correct water temperature to
be restored
Reduce the suction height.
Connect appliance to the mains
water supply
Reduce temperature
Clean nozzle (fi g.5)
Clean fi lter (L) (fi g.5)
Check that the voltage of the mains
power supply line is the same as that
on the plate (fi g.2)
Check characteristics of extension
cable
Contact your nearest Authorised
Service Centre
Contact your nearest Authorised
Service Centre
Check that the plug is fi rmly in the
socket and that the mains voltage
supply is present (*)
Contact your nearest Authorised
Service Centre
Using the tool (M) unjam the motor
through the hole at the rear of
the appliance (in models with this
feature) (fi g. 5)
Have the seals replaced at your
nearest Authorised Service Centre
Contact an Authorised Service
Centre
Reduce temperature (see technical
data)
Contact your nearest Authorised
Service Centre
Contact your nearest Authorised
Service Centre
Clean nozzle (fi g.5)
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