14- ENG
A04196
TROUBLESHOOTING GUIDE
PROBLEM
Engine will not
start (see Engine
Manual for
further engine
troubleshooting)
No or low
pressure
(initial use)
CAUSE
CORRECTION
No fuel.
Add Fuel.
Pressure builds up after two pulls on
the recoil starter or after initial use.
Squeeze gun trigger to relieve
pressure.
Spark plug wire not attached.
Attach spark plug wire.
Spray wand not in high pressure. See How to Use Spray Wand
instructions in the Operation
Section.
Low water supply.
Water supply must be at least 5
GPM @ 20 PSI.
Leak at high pressure hose fitting.
Repair leak. Apply sealant tape
if necessary.
Nozzle obstructed.
See Nozzle Cleaning instructions
in the Maintenance section.
Water filter screen clogged. Remove and clean filter.
Air in hose.
Turn off the engine, then the
water supply. Disconnect the
water supply from the pump inlet
and turn the water supply on to
remove all air from the hose.
When there is a steady stream of
water present, turn water supply
off. Re-connect water supply to
pump inlet and turn on water
supply. Squeeze trigger to re-
move remaining air.
high pressure hose is too long.
Use high pressure hose under
100'.
Engine not primed
Push primer button three times
Throttle control lever is not in the
“Fast” position.
Move throttle control lever to the
“Fast” position.
Spray wand not in low pressure.
See How to Use Spray Wand
paragraph in the Operation
Section.
Detergent screen not in
detergent/cleaning solvent.
Clean filter.
Detergent/cleaning solvent too
thick.
Dilute detergent/cleaning solution.
Detergent/cleaning solution should
be the same consistency as water.
Pressure hose is too long
Lengthen water supply hose
instead of high pressure hose.
Detergent/cleaning solvent buildup
in chemical injector.
Have parts cleaned or replaced
by a certified mechanic.
Will not draw
detergent/
cleaning
solvents
Make sure end of detergent hose
is fully submerged into cleaning
solution.
Detergent filter clogged.
Air filter clogged.
Clean air filter and reassemble.
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