Graco RTX2500 Operation, Parts page 23

Problem
Power switch is on and sprayer
is plugged in, but motor does not
run, and pump does not cycle.
Sprayer continues to run when
gun trigger is released.
Sprayer does not start when gun
is triggered.
Sprayer cycles ON and OFF
when trigger is released.
or
Sprayer cycles ON and OFF
when gun is triggered.
3A3258H
Cause
Air valve on gun is closed or not
open enough.
Motor or control is damaged.
Electric outlet is not providing
power.
Extension cord is damaged.
Sprayer electric cord is
damaged.
Material and/or water is frozen or
hardened in pump.
Prime valve is plugged
(RTX2000pi and RTX2500pi).
Gun is plugged.
Pressure switch is damaged.
Compressed air system leak.
Flow switch is stuck.
Flow switch is stuck.
Pressure switch is damaged.
Compressed air system leak.
Flow switch is stuck.
Check valve is damaged.
Troubleshooting
Solution
Open air valve.
Take sprayer to Graco
authorized service center.
Try a different outlet or plug in
something that you know is
working to test outlet.
Reset building circuit breaker or
replace fuse.
Replace extension cord. See
Grounding, page 9.
Check for broken insulation or
wires. Replace electric cord if
damaged.
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.
Remove and clean prime valve.
Disassemble and clean gun.
Replace pressure switch.
Locate leak; check gun, twin line
hose, or internal system. Reseal
leaky fitting or replace hose.
Replace flow switch.
Replace flow switch.
Replace pressure switch.
Locate leak; check gun, twin line
hose, or internal system. Reseal
leaky fitting or replace hose.
Replace flow switch.
Replace check valve.
23