Troubleshooting Guide

Troubleshooting
34 3A3208B
Pump is primed, but can not achieve
good spray pattern.
Spray tip may be partially clogged. Clear spray tip clog. See page 18.
Reversible spray tip is in UNCLOG
position.
Rotate arrow-shaped handle on spray
tip so it points forward to SPRAY
position. See page 18.
Debris in paint. Strain the paint. See page 26.
Pressure is set too low. Align pressure control knob setting
indicator to desired spray setting. See
page 17.
ProX only: InstaClean fluid filter is
clogged.
Clean or replace InstaClean fluid
filter. See page 22.
Spray gun fluid filter is clogged. Clean or replace gun fluid filter. See
page 22.
Spray tip selected is too large for
capability of sprayer.
Replace tip. See page 17.
Spray tip is worn beyond the
capability of sprayer.
Replace tip. See page 17.
Spray tip gasket and seal worn or
missing.
Replace gasket and seal. See page
16.
Inlet strainer is clogged or suction
tube is not immersed in paint.
Clean debris off inlet strainer and
make sure suction tube is immersed
in paint.
Extension cord is too long or not
heavy enough gauge.
Replace extension cord. See page 4.
Inlet pump valve or outlet pump valve
is worn or clogged with debris.
Check for worn or contaminated inlet
valve or outlet valve.
- Prime sprayer with paint
- Trigger 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
- Clean and reinstall valves
- ProX only: Replace valves with
appropriate kits. See page 48.
Material is too thick. Thin material. Follow manufacturers
recommendations.
Airless hose is too long (if extra
section was added).
Remove section of airless hose.
Spray gun stopped spraying while
trigger is pulled.
Spray tip is clogged. Clear spray tip clog. See page 18.
Sprayer lost prime. See troubleshooting section “Sprayer
runs, but pump does not prime or
looses prime while in use.” on page
33.
Problem Cause Solution