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Troubleshooting
28 3A2589D
Sprayer makes sound but no
material is sprayed when trigger
is pulled
Sprayer is not primed. Prime the pump. See Starting a New
Job (or Refilling the Material Cup),
page 11.
Use pump access armor storage/startup
tool to clear pump of debris. See Stor-
age, page 17.
Clean air vent holes or the air vent valve
as your model is equipped. See Shut-
down and Cleaning, page 15.
Prime/spray valve is in UP position. Put prime/spray valve DOWN to spray
position.
Flexible suction tube is missing or
improperly installed.
Make sure Flexible Suction Tube is
properly installed, page 9.
Flexible suction tube strainer or air
vent valve or vent holes are clogged.
See Shutdown and Cleaning, page 15.
Flexible suction tube o-rings are
damaged or missing.
Replace flexible suction tube o-rings.
Flexible suction tube is damaged. Replace flexible suction tube.
Spray tip is not in SPRAY position. Turn spray tip to SPRAY position.
Spray tip is clogged. See Unclogging Spray Tip/Guard
Assembly, page 14.
Spray tip filter is clogged. Remove and clean Spray tip filter. See
Unclogging Spray Tip/Guard Assem-
bly, page 14.
Pressure control knob is too low. Turn pressure control knob up.
Sprayer has been tilted too far and
flexible suction tube has lost contact
with material.
Make sure material cup is filled with
material. Rotate flexible suction tube,
page 9. Do not tilt the material cup too
far. Prime the pump. See Starting a
new Job (or Refilling the Material
Cup), page 11.
No or low material in material cup. Refill material cup with material and
prime the pump.
Inlet valve fitting is stuck from
material residue left in sprayer.
Use pump access armor storage/startup
tool to clear pump of debris. See Stor-
age, page 17. If unsuccessful, see Inlet
Valve Fitting Removal/Service, page
25.
Pump is clogged, frozen, or has
debris inside.
See Outlet Valve Fitting Repair, page
26 and Inlet Valve Fitting
Removal/Service, page 25.
Material is leaking from hole in front
of sprayer.
Replace needle assembly.
Problem Cause Solution