27
Troubleshooting
TROUBLESHOOTING CHART
SYMPTOM
PROBABLE CAUSE
REMEDY
Engine will not start
Various engine problems
Refer to the Engine Manual
accompanying your unit.
Unit components are frozen. Allow to thaw. If any part of the
unit becomes frozen; excessive
pressure may build up in the
unit which could cause the unit
to burst resulting in possible
serious injury to the operator or
bystanders.
No discharge at
nozzle when trigger
mechanism is
squeezed.
Inadequate water supply.
Ensure hose is 3/4” diameter
and incoming water supply is
turned on.
Low or fluctuating
pressure.
Kink in water inlet hose.
Remove kink.
Kink in high pressure
discharge hose.
Replace kinked high pressure
hose.
Water inlet screen
obstructed.
Remove screen, clean or
replace.
Pump sucking air. (Prime
eliminated)
Tighten all water intake
connections Eliminate leaks in
intake line.
Collar on adjustable nozzle
is not in the high pressure
mode.
Turn Collar clockwise to move to
high pressure
Obstructed or worn spray
nozzle.
Remove, clean or replace.
Damaged or obstructed
valve assy. on pump.
Remove, clean or replace.
Pump packings worn.
Replace packings.
Unloader/Bypass valve not
operating correctly.
Repair or replace.
Water is leaking from
Thermal Relief Valve.
Water temperature is too
high.
Do not allow unit to operate in
bypass mode (with the trigger
gun closed) for more than three
minutes.
Defective valve.
Replace.
Oil appears milky or
foamy.
Water in oil.
Change pump oil. Fill to proper
level.
Oil leaking from unit.
Worn seals or o-rings.
Contact Customer Service.
TROUBLESHOOTING
Содержание HW3513HAD
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