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Basic Troubleshooting
46 313316E
General Problem: No Output
General Problem: Excessive Pressure Build Up
Problem Cause Solution
Power switch is on and sprayer is plugged
in but pump does not cycle.
See Basic Troubleshooting, page 41.
Motor runs but pump does not cycle. Gear and/or yoke are damaged. Replace gear and yoke using Gear/Yoke
Repair Kit, page 79.
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 79.
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 79.
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 79.
Control board failed. See Control Board Diagnostics, page 74.
Replace damaged control board using
Control Board Kit, page 79.