When
Plug is not well connected or electric
switched on
socket is faulty.
the machine
The main voltage is insufficient, lower
will not start
than minimum requirement.
working.
The pump is stuck.
Thermal safety switch has tripped.
Fluctuating
Pump sucking air.
Pressure
Valves dirty, worn out or stuck.
Pump seals worn out.
Water leaking
Seals worn out.
from the pump.
The motor
Thermal safety switch has tripped due
stops
to overheating.
suddenly.
The pump
Water inlet filter is clogged.
doesn't reach
Pump sucking air from connections or
the necessary
hoses.
pressure.
Suction/ delivery valves are clogged
or worn out.
Unloaded valve is stuck.
Lance nozzle incorrect or worn out.
Check plug, socket.
Check that the main voltage is
adequate.
Refer to after storage instructions.
Switch off the unit and let the motor
cool for a few minutes.
Leave the lance open.
Check that hoses and connections are
airtight.
Clean and replace, or refer to dealer.
Check and replace, or refer to dealer.
Check that the main voltage
corresponds to specifications.
Switch off the unit and let it cool for a
few minutes.
Clean the water inlet filter.
Check that all supply connections are
tight.
Check that the water feeding hose is
not leaking.
Clear or replace valves.
Loosen and re-tighten regulation
screw.
Check and/or replace.