DG • 8.919-011.0 • Rev. 04/19
PRESSURE WASHER Troubleshooting Guide
14
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
ENGINE
OPERATES FOR
15 MIN. 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 filter
Clean or replace fuel filter.
ENGINE LACKS
POWER
Dirty air filter
Replace air filter.
ENGINE FALTERS
Choke is opened too soon
Move choke to halfway position until engine
runs smoothly.
WATER DRIPPING
FROM
UNDER PUMP
Piston packing worn
Contact local dealer.
O-Ring plunger retainer worn
Contact local dealer.
Cracked piston
Contact local dealer.
OIL DRIPPING
Oil seal worn or damaged
Contact local dealer.
WATER LEAK-
ING 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 manufac-
turers detergent.
Detergent filter valve is at low-
est setting
Set detergent filter valve to a higher setting.
Filter on detergent suction tube
is clogged
Run warm water through filter to remove debris.
Damaged or clogged detergent
suction tube
Remove obstruction or replace detergent suc-
tion tube.
A high pressure nozzle is at-
tached.
Replace with black detergent nozzle.
Discharge nozzle is obstructed
Blow out or remove debris with fine needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose fittings
Tighten fittings.
Missing/worn rubber washer
Insert new washer.
SPRAY WAND
LEAKS
Spray wand not properly at-
tached
Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring
Call your distributor and order an o-ring.
PUMP IS NOISY
Pump is sucking air
Check that hoses and fittings are air tight. Turn
off machine and purge pump by squeezing
trigger gun until a steady flow of water emerges
through nozzle.
