11
TROUBLESHOOTING
Problems
Pump does not reach working
pressure
Pump pressure drops during use
Motor "buzzes" but fails to start
Motor fails to start
Water leakages
Machine noisy
Oil leakages
Machine starts even with gun
trigger released
No water delivery when gun
trigger is depressed (with water
inlet hose connected)
Problems
Pump pressurised but no liquid
comes out
MODEL
SERIAL NUMBER
High pressure washer function
Probable causes
Worn nozzle
Water filter fouled
Insufficient water supply
Air being sucked into system
Air in pump
Water being sucked from an open tank from a height
of more than 0.5 m
Water being sucked from an external tank
Inlet water too hot
Nozzle clogged
Inlet filter (L) fouled
Power supply voltage too low
Voltage drop due to use of extension cable
Machine not used for a long period of time
Problems with TSS device
No electrical power
Problems with TSS device
Seals worn
Water too hot
Seals worn
High pressure system or pump circuit not watertight
Nozzle clogged
Sprayer function
Probable causes
Solution too dense
Scale or restrictions in circuit
Filters or nozzles fouled
Filters not fitted correctly
Tank empty
(*) 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 the Authorised Service Centre.
English
Remedies
Replace nozzle
Clean filter (L) (fig.5)
Turn on water supply tap fully
Check tightness of hose fittings
Switch off the machine and keep depressing and
releasing the gun trigger until the water jet is steady.
Switch the machine back on again.
Reduce the suction height
Connect machine to the mains water supply
Reduce temperature
Clean nozzle (fig.5)
Clean filter (L) (fig.5)
Check that the voltage of the mains power supply line is
the same as that on the data plate (fig.2)
Check characteristics of extension cable
Contact an Authorised Service Centre
Contact an Authorised Service Centre
Check that the plug is firmly in the socket and that the
mains voltage supply is present (*)
Contact an Authorised Service Centre
Have the seals replaced at your nearest Authorised
Service Centre
Reduce temperature (see technical data)
Contact an Authorised Service Centre
Contact an Authorised Service Centre
Clean nozzle (fig.5)
Remedies
Dilute with water
Flush with clean water and eliminate any restrictions. If the
problem persists, contact an Authorised Service Centre.
Check and clean filters (P5) and (P6) and nozzles (P4)
Clean filters (P5) / fit them correctly
Fill tank
15
EN