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Troubleshooting
Problem
Sprayer runs, but pump does
not prime or loses prime while
in use (pump cycles but does
not pump material or build
pressure).
Pump is primed, but can not
achieve good spray pattern.
Spray Gun stopped spraying
while trigger is pulled.
Fan pattern varies dramatically
while spraying.
26
Cause
Inlet valve check ball is stuck.
Prime/Spray Valve is in
SPRAY position.
Inlet strainer is clogged or
Hopper is empty.
Inlet valve check ball or seat is
dirty.
Outlet valve check ball is
stuck.
Prime/Spray Valve is worn or
obstructed with debris.
Spray Tip is in UNCLOG
position.
Pressure is set too low.
Spray Tip gasket and seal
worn or missing.
Inlet strainer is clogged or
Hopper is empty.
Extension cord is too long or
not heavy enough gauge.
Inlet pump valve or outlet
pump valve is worn or clogged
with debris.
Airless Hose is too long (if
extra section was added).
Sprayer lost prime.
Pressure control switch is worn
and causing excessive
pressure variation.
Solution
Press PushPrime Button to
dislodge the ball allowing
pump to prime properly.
Turn Prime/Spray Valve down
to PRIME position until
material exits Drain Tube. The
pump is now primed.
Clean debris off inlet strainer
and make sure there is fluid in
Hopper.
Remove Fluid Inlet Fitting.
Clean ball and seat. See page
23.
Unscrew outlet valve, remove,
and clean assembly.
Replace pump assembly. See
Parts, page 28.
Rotate arrow-shaped handle
on Spray Tip so it points
forward to SPRAY position.
Increase pressure setting of
Pressure Control Knob.
Replace gasket and seal. See
page 16.
Clean debris off inlet strainer
and make sure there is fluid in
Hopper.
Replace extension cord. See
page 9.
Check for worn or
contaminated inlet valve or
outlet valve.
- Prime sprayer
- Trigger Spray Gun momentarily
- When trigger is released,
pump should cycle
momentarily and stop
- If pump continues to cycle,
pump valves may be worn or
contaminated with debris
- Replace Pump Assembly.
See Parts, page 28.
Remove section of Airless
Hose.
See troubleshooting section
"Sprayer runs, but pump does
not prime or loses prime while
in use." on page 26.
Replace Pump Assembly. See
Parts, page 28.
3A7653A
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