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22- ENG
OPERATIONAL
ISSUE
POSSIBLE CAUSE SOLUTION
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.
See Cleaning Water Inlet
Filter paragraph in the
Maintenance section for
the correct procedure
No or low
pressure
(initial use)
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
Choke in the “Choke” position Move choke to the “No
Choke”
po si tion
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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