Specifications

Advanced Troubleshooting
312004B 27
General Problem: No Output
Specific Problem Cause Solution
Project Painter 5 and Project
Painter 7 - AllControl is ON
or
SR7, ProX7 and ProX9 - Power
switch is on and sprayer is
plugged in but pump does not
cycle
See Basic Troubleshooting,
page 17.
Motor runs but pump does not
cycle.
Gear and/or yoke are damaged Replace gear and yoke using Gear/Yoke Repair
Kit, page 28.
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 28.
General Problem: Excessive Pressure Build Up
Specific Problem Cause Solution
SR7, ProX7 and ProX 9 -
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 28.
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 28.
Control board failed. See Control Board Diagnostics, page 31.
Replace damaged control board using Control
Board Kit, page 28.