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Troubleshooting
28 312001R
Pressure is set at maximum but
cannot achieve a good spray
pattern.
Reversible spray tip is in
UNCLOG position.
Rotate arrow-shaped handle on
spray tip so it points forward in
SPRAY position, page 14.
Spray tip is too large for sprayer. Select smaller spray tip.
Spray tip is worn beyond
capability of sprayer.
Replace spray tip.
Extension cord is too long or not
heavy enough gauge.
Replace extension cord.
Grounding and Electrical
Requirements, page 7.
Spray gun fluid filter is clogged. Clean or replace spray gun fluid
filter, page 21.
InstaClean fluid filter is clogged. Clean or replace InstaClean fluid
filter, page 21.
Inlet screen is clogged. Clean debris off inlet screen.
Pump valves are worn, or debris
is clogging valve.
Check for worn pump valves.
a. Prime sprayer with paint
b. Trigger gun momentarily.
When trigger is released,
pump should cycle
momentarily and stop. If
pump continues to cycle,
pump valves may be worn.
c. Remove valves and check
for debris.
Material is too thick. Thin material.
Hose is too long (if extra section is
added).
Remove section of hose.
Spray gun stopped spraying. Suction tube is leaking. Tighten suction tube connection.
Inspect for cracks or vacuum
leaks.
Spray tip is clogged. Unclog spray tip, page 14.
When paint is sprayed, it runs
down the wall or sags.
Coat is going on too thick. Move gun faster.
Choose a tip with smaller hole
size.
Choose tip with wider fan.
Make sure gun is far enough from
surface.
When paint is sprayed, coverage
is inadequate.
Coat is going on too thin. Move gun slower.
Choose tip with larger hole size.
Choose tip with narrower fan.
Make sure gun is close enough to
surface.
Problem Cause Solution