Troubleshooting
3A3388A Operation
51
Gallon (liter) counter not
adding fluid volume.
Fluid pressure not high enough.
Must be over 800 psi (55 bar) for counter to add.
Broken or disconnected pump counter wire,
both pumps.
Check wires and connections. Replace any bro-
ken wires
Missing or damaged magnet.
Reposition or replace magnet on pump, see
Parts manual (Pump parts) for magnet location.
Bad sensor, both pumps.
Replace sensor.
Sprayer operates, but dis-
play does not.
Bad connection between control board and
display.
Remove display and reconnect.
Display damaged.
Replace display.
Distance not adding prop-
erly (Measure mode will be
inaccurate and speed will be
wrong).
Machine not calibrated.
Perform calibration procedure. See Operation
manual.
Rear tire pressure is too low or too high.
Adjust tire pressure to 55 +/- 5 psi (380 +/-
34kPa).
Gear teeth missing or damaged (right side
when standing on platform).
Replace distance gear/wheel hub.
Distance sensor is loose or broken.
Reconnect or replace sensor.
Mils not calculating or calcu-
lates wrong.
Distance sensor.
See “Distance counter not operating properly”.
Gallon counter.
See “Gallon (liter) counter not adding fluid vol-
ume.”
Line width not entered.
Set line width on main striping screen.
Bad or damaged control board.
Replace control board.
Fluid spray starts after spray
icon is shown on display.
Interrupter.
Turn screw counterclockwise until spray icon
synchronizes with fluid spray, page 19.
Spray icon does not show on
display when fluid is
sprayed.
Loose connector.
Check connector and reconnect.
Interrupter is improperly positioned.
Turn screw counterclockwise until spray icon
synchronizes with fluid spray, page 19.
Reed switch assembly is damaged.
Replace reed switch assembly.
Magnet on assembly is missing.
Replace reed switch assembly.
Cut or sliced wire.
Replace distance sensor harness.
Control board is damaged.
Replace control board.
Display is damaged.
Replace display.
Spray icon is always shown
on display.
Interrupter is improperly positioned.
Turn screw clockwise until spray icon is synchro-
nized with fluid spray, page 19.
Reed switch assembly is damaged.
Replace reed switch assembly.
Problem
Cause
Solution
