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TROUBLESHOOTING
Y Y
No power:
Check the in-line fuse to the power transformer.
Check the voltage at the transformer.
Check input terminals on board for loose screws
and correct input voltage. Refer to the wiring
diagram for voltage input terminals.
Y Y
Pump will not activate:
Check pump output terminals for loose screws
and disconnected wires.
Check for proper voltage across motor windings.
Check for obstruction in pump head.
Y Y
Too much chemical:
Check the number of events programmed.
Check the run time for each programmed event.
Y Y
Too little chemical:
Check the number of events programmed.
Check the run time for each programmed event.
Check for obstruction in pump head.
Page 6 of 8
Y Y
Pump runs too slowly:
Check roller block for binding.
Check voltage (24 VDC applied to the pump
motor terminals will result in the highest speeds).
Check for lubrication on squeeze tube.
Y Y
Pump will not shut off:
Check if an event is running.
Check for stuck prime switch.
Try shutting off main power (unplugging or
disconnecting xfmr) for a few minutes.
Possible damaged circuit board.
Y Y
Loss of pump prime:
Check pickup line for any holes or air leaks.
Check squeeze tubing in pump for any cracks or
pin holes.
Check tubing for deterioration.
Y Y
Spray nozzle drips or does not spray:
Check for obstruction in pump head, or problem
with squeeze tube that could be blocking flow of
chemical to spray nozzle assembly.
Check for air leaks that could be reducing line
pressure to the spray nozzle.
Check for damage to the spray nozzle.
0900905 Rev: F (03/02)
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