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TROUBLESHOOTING
Use the inspections in the table below if the tool does not operate normally. If this does not remedy the problem, consult your
dealer or the Hitachi Authorized Service Center.
Symptom
The motor won't operate
when the trigger is pulled.
The motor continues
operating when the
trigger is released.
Water is not being
discharged.
The water pressure won't
rise.
22
Possible cause
The power plug is not plugged into the power
socket.
The switch is set at "OFF"
The extension cord is unplugged or severed
midway.
The thermal protector has been activated.
The water volume or pressure from the faucet
is too low.
Water is leaking.
The water hose is not connected.
The water hose or high-pressure hose is
twisted.
The backfl ow valve on the one-touch joint is
not operating.
The trigger stopper is locked.
The faucet it turned off .
The nozzle is blocked.
The strainer is blocked.
The power plug is not plugged into the power
socket.
The switch is set at "OFF".
The water volume or pressure from the faucet
is too low.
The nozzle is blocked.
The electrical voltage is too low.
Water is leaking.
Remedy
Plug the power cord into the power socket.
Switch the washer on.
Replace the extension cord or check it with a
diff erent electrical appliance.
Remedy the problem in accordance with the
details listed in "Safety Mechanisms" on
page 21.
○ Open the faucet fully.
○ Unravel any twists in the water hose and
high-pressure hose.
○ Check to make sure that the inner diameter
of the water hose is correct.
○ Check to make sure that the water hose is
not wound onto the reel.
Check the hose connections.
Connect the water hose.
Unravel the twists.
Check to make sure that the inner diameter of
the water hose is correct.
Remedy the problem in accordance with the
details listed in "Trigger Stopper" on page 20.
Open the faucet fully.
Clean the end of the nozzle with the nozzle
cleaner pin supplied.
Wash the strainer, which is incorporated into
the water feed inlet, in accordance with the
details listed in "Inspecting the Strainer" on
page 21.
Plug the power cord into the power socket.
Switch the washer on.
○ Open the faucet fully.
○ Unravel any twists in the water hose and
high-pressure hose.
○ Check to make sure that the inner diameter
of the water hose is correct.
○ Check to make sure that the water hose is
not wound onto the reel.
Clean the end of the nozzle with the nozzle
cleaner pin supplied.
Check to make sure that the thickness and
length of the extension cord is appropriate.
Check the hose connections.
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