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PROBLEM POSSIBLE
CAUSE
SOLUTION
The output pres-
sure varies high
and low.
The water supply
is not sufficient.
Open water sup-
py fully. Make
sure the garden
hose is free from
blockage.
The pump ab-
sorbs air.
1. Make sure
that the ho-
ses and fit-
tings have no
problem.
2. Turn the ma-
chine off.
3. Pull the gun
trigger until a
stable flow of
water comes
out through
the nozzle.
The water intake
filter is clogged.
Remove the filter
and clean it in
warm water.
The supply volt-
age is low.
Make sure that
only the pres-
sure washer op-
erates on the cir-
cuit.
The gun, hose or
nozzle are calci-
fied.
Operate distilled
vinegar through
detergent tank.
PROBLEM POSSIBLE
CAUSE
SOLUTION
The motor buz-
zes, but you can
not start the ma-
chine.
The supply volt-
age is low.
Make sure that
only the pres-
sure washer op-
erates on the cir-
cuit.
The system has
remaining pres-
sure.
1. Stop the ma-
chine.
2. Pull the gun
trigger on
spray wand
to release
pressure
3. Start the ma-
chine.
The voltage de-
creases across
extension cord.
Disconnect the
extension cord,
and connect the
machine directly
into the outlet.
You do not use
the machine for
a long time.
Speak to a per-
son of an ap-
proved service
center.
There is remain-
ing friction in
components.
You can hear a
hum.
1. Disconnect
the water
supply.
2. Turn the ma-
chine on for
2 or 3 sec-
onds.
3. Repeat the
above step
for several
times.
There is no wa-
ter.
The water supply
is off.
Turn the water
supply on.
The garden hose
is blocked.
Make sure that
the garden hose
is free from
blockage.
8 TECHNICAL DATA
Model No. GPW 1501 GPW 1602
Universal Motor 120V~ 60 Hz,
13 Amps
120V~ 60 Hz,
13 Amps
Max. Pounds Per
Square Inch Pres-
sure
1500 PSI 1600 PSI
Rated Gallons Per
Minute
1.2 GPM 1.2 GPM
11
English
EN
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