Manual
8.780-013.0 • Xpert-HD • Rev. 10/12
PRESSURE WASHER Troubleshooting Guide
14
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE OPERATES 
FOR 15 MINUTES 
THEN STOPS
Not enough gas or engine oil Fill tank with gas. Check oil level.
Vapor lock developed by heat of day Keep gas tank full to avoid vapor locking.
Obstruction in fuel fi lter Clean or replace fuel fi lter.
ENGINE LACKS 
POWER
Dirty air fi lter Replace air fi lter.
ENGINE FALTERS
Choke is opened too soon Move choke to halfway position until engine 
runs smoothly.
WATER DRIPPING 
FROM UNDER PUMP
Piston packing worn Call local distributor.
O-Ring plunger retainer worn Call local distributor.
Cracked piston Call local distributor.
OIL DRIPPING
Oil seal worn or damaged Call local distributor.
WATER LEAKING 
FROM PUMP 
PROTECTOR
Spray gun closed with machine 
running 5 minutes or longer
Open spray gun or turn off machine.
Excess water supply pressure Place a pressure regulator at end of 50' 
garden hose.
NO DETERGENT
Detergent suction tube not properly 
connected to machine
Check connection.
Detergent is too thick Dilute detergent. For best results, use 
manufacturers detergent.
Detergent fi lter valve is at lowest 
setting
Set detergent fi lter valve to a higher setting.
Filter on detergent suction tube is 
clogged
Run warm water through fi lter to remove 
debris.
Damaged or clogged detergent suc-
tion tube
Remove obstruction or replace detergent 
suction tube.
A high pressure nozzle is attached. Replace with black detergent nozzle. 
Discharge nozzle is obstructed Blow out or remove debris with fi ne needle.
GARDEN HOSE 
CONNECTION 
LEAKS
Loose fi ttings Tighten fi ttings.
Missing/worn rubber washer Insert new washer.
SPRAY WAND 
LEAKS
Spray wand not properly attached Slide the spray wand into the gun. Turn the 
wand collar clockwise onto the spray gun 
threads until tight.
Broken o-ring Call local distributor and order an o-ring.
PUMP IS NOISY
Pump is sucking air Check that hoses and fi ttings are air tight. 
Turn off machine and purge pump by 
squeezing trigger gun until a steady fl ow of 
water emerges through nozzle. 
TROUBLESHOOTING










