Troubleshooting
3A2854G 25
Troubleshooting
Check everything in this Troubleshooting Table before
you bring the sprayer to an authorized service center.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing fluid
and moving parts, follow the Pressure Relief
Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
Problem Cause Solution
Sprayer makes no sound when
trigger is pulled
Trigger is locked. Disengage trigger lock. See page 8.
Power supply. Verify power to sprayer.
Motor has overheated. Wait 20-30 minutes for motor to cool.
Sprayer circuit breaker has interrupted power. Push and hold Circuit Reset Button (page 6) to
restore power to sprayer.
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 Refill-
ing the Material Cup), page 11.
Use pump access armor storage/startup tool to clear
pump of debris. See Storage, page 17.
Clean air vent holes or the air vent valve as your
model is equipped. See Shutdown and Cleaning,
page 15.
Prime/spray valve is in UP position. Put valve DOWN to spray position.
Flexible suction tube is missing or improperly
installed.
Make sure flexible suction tube is properly installed.
Flexible suction tube strainer or 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 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 Assembly, page 14.
Pressure control knob is too low. Turn pressure control knob up.
Sprayer has been tilted too far and 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 is stuck from material
residue left in sprayer.
Use pump access armor storage/startup tool to clear
pump of debris. See Storage, page 17. If unsuc-
cessful, see Inlet Valve Removal/Service, page 22.
Pump is clogged, frozen, or has debris inside. See Outlet Valve Fitting Repair, page 23 and Inlet
Valve Removal/Service, page 22.
Material is leaking from hole in front of sprayer. Replace needle assembly.
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