309044
15
Advanced Troubleshooting
General Problem: Excessive Pressure is Building Up
SPECIFIC PROBLEM
CAUSE
SOLUTION
Spray–Prime/Drain valve
actuates automatically,
relieving pressure
Pressure control switch is worn.
Replace pressure control switch.
See
Pressure Control Switch Kit
on page 22.
relieving pressure
through drain tube.
Water or paint entered pressure control switch
or shorted control board.
Clean out and/or dry out, and retry. Replace if
necessary. See
Pressure Control Switch Kit
on
page 22.
Control board has failed.
See
Control Board Diagnostics
on page 16, and
replace control board if damaged.
See
Control Board Kit
on page 17.
List of Kits
Kit Number
Kit Description
235014
Spray–Prime/Drain Valve
243082
Inlet Strainer (for inlet of suction tube)
243090
XR Pump Repair (pump packing module)
243093
XR Pump Inlet Valve Module
243094
XR Pump Outlet Valve Module
243095
Pump Rod
243096
Drain Tube Diffuser
243227
XR5 Pressure Control Switch
243521
XR7/XR9 Pressure Control Switch
243228
XR5/XR7 Control Board
243229
XR9 Control Board
243231
Fan/Shroud/Brace
243230
Gear/Yoke/Guides
243232
XR5 Enclosure (includes both sides, labels, and screws)
243234
XR7/XR9 Enclosure (includes both sides, labels, and screws)
243236
XR Motor/Drive Housing
243237
Front Cover/Bearing
243533
XR Pump Replacement (complete pump
*
)
*
Does not include XR5 Pressure Control Switch 243227 or XR7/XR9 Pressure
Control Switch 243521. Re-use pressure control switch from pump being
replaced, or order separately.