Troubleshooting
28
334513N
Pump does not stroke
No power
Ensure the motor has proper incom
-
ing power.
Ensure a fuse or circuit breaker has
not blown or tripped.
Ensure the pump controller is supply
-
ing power.
Incorrect power
Ensure the pump power voltage is
correct.
Ensure the pump power polarity is
correct. (variable speed DC)
Pump stalled
Ensure the discharge pressure does
not exceed the pump’s maximum
working pressure.
Ensure the pressure relief valve is
set properly and is functional.
Ensure the check valve and shutoff
at the point of injection are open.
Ensure the motor shaft spins freely. If
not, replace motor or gearbox.
Drive cam or motor shaft keyway is
damaged
Inspect and replace the motor or cam
as required.
Water ingress
Ensure the motor junction box electri
-
cal connection and conduit are
water-tight.
Inspect the motor and replace as
required.
Worn motor brushes (DC only)
Remove brush dust.
Inspect brushes and replace as
required.
Motor control board failure (variable
speed only)
Replace the control board.
Motor gearbox failure
Replace the motor.
Replace the gearbox. (C1D1 only)
Pump is excessively noisy
Worn drive train components
Inspect and replace the drive compo
-
nents as required.
Motor gearbox wear
Replace the motor.
Replace the gearbox. (C1D1 only)
Problem
Cause
Solution
