Troubleshooting
3A0248C 29
Pump does not prime. Inlet valve check ball is stuck. Remove suction tube and place a
pencil into the inlet section to
dislodge the ball, allowing pump to
prime properly. OR Power Flush
sprayer (see Operation manual).
Inlet valve check ball or seat is dirty. Remove inlet housing. Clean or
replace ball and seat.
Outlet valve check ball is stuck. Unscrew outlet valve with a 3/4 in.
socket. Remove and clean assembly.
Suction tube is not immersed Make sure suction tube is immersed
in paint.
Suction tube is leaking. Tighten suction tube connection.
Inspect for cracks or vacuum leaks.
Pump does not prime with fluid. Remove suction tube from paint.
Prime pump with water or
solvent-based flushing fluid.
Pump cycles but does not build up
pressure.
Pump is not primed. Prime pump.
Inlet screen is clogged. Clean debris off inlet screen and
make sure suction tube is immersed
in fluid.
Suction tube is not immersed in paint. Make sure suction tube is immersed
in paint.
Paint pail is empty. Refill hopper or paint pail. Reprime
sprayer.
Suction tube is leaking. Inlet tube fitting improperly or not
securely attached.
Prime/Spray Valve is worn or
obstructed with debris.
Take sprayer to authorized service
center.*
Pump check ball is stuck. Read Pump does not prime section
above.
Pump cycles, but paint only dribbles
or spurts when spray gun is
triggered.
Pressure is set too low. Turn Pressure Control Knob
clockwise to increase pressure
setting which will turn on motor to
build pressure.
Spray tip is clogged. Unclog spray tip.
Spray gun fluid filter is clogged. Clean or replace gun fluid filter.
Spray tip is too large or worn. Replace spray tip.
Problem Cause Solution
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