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Problem
Sprayer makes sound but
no material is sprayed
when trigger is pulled
3A4476E
Cause
Sprayer is not primed.
Prime Pump/Spray knob is in PRIME
PUMP position.
Spray tip is not in SPRAY position.
Spray tip is clogged.
Debris in paint.
Pump filter plugged.
Speed control is set too low.
No or low material in material cup.
Pump has reached the end of its life. Replace pump assembly.
Diagnostic light blinks four times
when the trigger is pulled. Indicates a
locked rotor condition.
Troubleshooting
Solution
Prime the pump. See Starting a
New Job, page 9.
Make certain there is only one
FlexLiner in the cup support.
Make certain the cup cover is
properly threaded to the cup
support. If threads are visible
below the cup cover when tight,
fully remove and reinstall to the
cup support so no threads are
visible when tight.
Make certain the cup cover is
tightened to cup support so the
arrow on cup cover is within
range of indicator on cup
support.
Make certain the cup assembly is
properly locked on the sprayer.
Make certain all the air is out of
the FlexLiner and the VacuValve
is properly closed.
Clean VacuValve reservoir and
air hole. See Cleaning
VacuValve, page 20.
Clean Sprayer. See Cleanup,
page 17.
Outlet valves are not installed
properly. See Cleaning Outlet
Valves, page 27.
Turn Prime Pump/Spray knob
forward to SPRAY position.
Turn spray tip to SPRAY
position.
See Clear Tip Clog, page 15.
See Strain the Paint, page 9.
See step 16 on page 20.
Increase speed until unit sprays.
Refill FlexLiner with material and
prime the pump. See Refilling
FlexLiner, page 12.
Replace pump and/or motor
assembly.
31
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