20- ENG
TROUBLE SHOOTING GUIDE
OPERATIONAL
ISSUE
POSSIBLE CAUSE SOLUTION
Engine will
not start (see
Engine Manual
for further
engine
troubleshooting)
No fuel. Add Fuel.
Pressure builds up after
two pulls on the recoil
starter or after initial use.
Squeeze gun trigger to relieve
pres sure.
No or low
pressure
(initial use)
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 source. Disconnect the
water source from the pump
inlet and turn the water source
on to remove all air from the
hose. When there is a steady
stream of water present, turn
water source off. Re- con nect
water source to pump inlet and
turn on wa ter source. Squeeze
trigger to re move re main ing air
High pressure hose
is too long.
Use high pressure hose under
100 feet (30m).
Will not draw
chemicals
Spray wand not in
low pressure.
See How to Use Spray
Wand paragraph in the
Operation Section.
Chemical filter clogged. Clean filter.
Chemical screen not in
cleaning solution.
Make sure end of detergent
siphon hose is fully submerged
into cleaning solution.
Chemical too thick. Dilute chemical. Chemical
should be the same
consistency as water.
Pressure hose is too long Lengthen water supply hose
instead of high pressure hose.
Chemical build up in
chemical injector.
Please contact our customer
service department at
www.simpsoncleaning.com..
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