Troubleshooting - a&i products HPW-1500E Manuel De L'opérateur

SYMPTOM
Pump motor will not run.
No discharge at nozzle when
trigger mechanism is squeezed.
Low or fluctuating pressure.
Water is leaking from Thermal Relief
valve.
Oil appears milky or foamy.
Oil leaking from unit.
Detergent will not siphon .
Detergent will not siphon into the
Low Pressure Mode.
Operator's Manual

TROUBLESHOOTING

PROBABLE CAUSE
Circuit overload.
GFCI tripped.
Motor overload.
Auto Start/Stop Option in use.
Inadequate water supply.
Kink in water inlet hose.
Kink in high pressure discharge hose.
Water inlet screen obstructed.
Pump sucking air. (Prime eliminated)
Adjustable Grip on Dual Lance
is not in high pressure mode.
Obstructed or worn spray nozzle.
Damaged or obstructed valve assy.
on pump.
Pump packings worn.
Unloader/Bypass valve not operating
correctly.
Scale build-up in heat exchanger coil.
Water inlet temperature is too high.
Water temperature is too high.
Defective valve.
Water in oil.
Worn seals or o-rings.
Detergent strainer is not completely
submerged in detergent solution.
Detergent strainer obstructed.
Detergent hose cut, obstructed or
kinked.
Detergent adjusting knob turned to
closed position.
Adjustable grip on dual lance is
not in low pressure mode.
Too many high pressure hose
extensions attached to the water outlet.
Nozzle assembly is plugged.
Ball & Spring in Venturi stuck.
REMEDY
Check wall breaker or fuse.
Reset.
Reset thermal overload button on
pump motor or inside electrical
control panel.
Point gun in a safe direction an
squeeze trigger.
Ensure hose is 3/4" diameter and
incoming water supply is turned on.
Remove kink.
Replace kinked high pressure hose.
Remove screen, clean or replace.
Tighten all water intake connections
Eliminate leaks in intake line.
Turn grip counterclockwise to move
to high pressure.
Remove, clean or replace.
Remove, clean or replace.
Replace packings.
Repair or replace.
Descale coil.
Incoming water temperature must be
less than 125°.
Do not allow unit to operate in
bypass mode (with the trigger gun
closed) for more than three minutes.
Replace.
Change pump oil. Fill to proper
level.
Contact Customer Service.
Check, submerge if necessary.
Inspect, clean or replace.
Inspect, clean or replace.
Open adjusting knob. Refer to
"Cleaning with Detergents" pg. 17.
Turn grip clockwise to move to low
pressure.
Use one extension maximum.
Clean or replace.
Remove, clean or replace.
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