Full Product Manual

Troubleshooting
3A3258J 23
Power switch is on and sprayer
is plugged in, but motor does not
run, and pump does not cycle.
Air valve on gun is closed or not
open enough.
Open air valve.
Motor or control is damaged. Take sprayer to Graco
authorized service center.
Electric outlet is not providing
power.
Try a different outlet or plug in
something that you know is
working to test outlet.
Reset building circuit breaker or
replace fuse.
Extension cord is damaged. Replace extension cord. See
Grounding, page 9.
Sprayer electric cord is
damaged.
Check for broken insulation or
wires. Replace electric cord if
damaged.
Material and/or water is frozen or
hardened in pump.
Unplug sprayer from outlet. If
frozen do NOT try to start
sprayer until it is completely
thawed or you may damage the
motor, control board and/or
drivetrain.
Make sure power switch is OFF.
Place sprayer in a warm area for
several hours. Then plug in
powercord and turn sprayer ON.
Slowly increase pressure setting
to see if motor will start.
If material is hardened in
sprayer, pump or pressure switch
may need to be replaced. Take
sprayer to Graco authorized
service center.
Prime valve is plugged
(RTX2000pi and RTX2500pi).
Remove and clean prime valve.
Gun is plugged. Disassemble and clean gun.
Sprayer continues to run when
gun trigger is released.
Pressure switch is damaged. Replace pressure switch.
Compressed air system leak. Locate leak; check gun, twin line
hose, or internal system. Reseal
leaky fitting or replace hose.
Flow switch is stuck. Replace flow switch.
Sprayer does not start when gun
is triggered.
Flow switch is stuck. Replace flow switch.
Sprayer cycles ON and OFF
when trigger is released.
or
Sprayer cycles ON and OFF
when gun is triggered.
Pressure switch is damaged. Replace pressure switch.
Compressed air system leak. Locate leak; check gun, twin line
hose, or internal system. Reseal
leaky fitting or replace hose.
Flow switch is stuck. Replace flow switch.
Check valve is damaged. Replace check valve.
Problem Cause Solution