Advanced Troubleshooting
309477F
17
General Problem: No Output
Specific Problem
Cause
Solution
Power switch is on and sprayer
is plugged in but pump does
not cycle
See Basic Troubleshooting,
page 9.
Motor runs but pump does not
cycle
Gear and/or yoke are damaged
(XR9 only)
Replace gear and yoke using
Gear/Yoke Repair
Kit
, page 18.
Motor does not run
Water or paint entered
pressure control switch or
shorted control board
Clean out and/or dry out and retry. Replace if
necessary using
Pressure Control Switch Kit
,
page 18.
General Problem: Excessive Pressure Build Up
Specific Problem
Cause
Solution
Prime/Spray Valve actuates
automatically, relieving
pressure through drain tube.
Pressure control switch is worn Replace pressure control switch using
Pressure
Control Switch Kit
, page 18.
Water or paint entered
pressure control switch or
shorted control board
Clean out and/or dry out and retry. Replace if
necessary using
Pressure Control Switch Kit
,
page 18.
Control board failed
See
Control Board Diagnostics
, page 19.
Replace damaged control board using
Control
Board Kit
, page 18.
