Troubleshooting
16
332514J
Troubleshooting
Problem
Cause
Solution
Pump not powering ON, green LED
is not ON
Wiring not done correctly, polarity is
wrong or loose wire(s)
Check wire connections. Verify they
are all tight. Correct polarity.
Fuse not in place or fuse is faulty
Check fuse rating. If incorrect fuse is
used, install fuse of the correct
amperage.
Lubrication controller is in OFF mode Set lubrication controller to correct
lube cycle.
Pump is powered on, green LED is
ON but pump is not cycling
Motor is not wired properly to control
board
Connect wires to correct color
terminals.
Pump is powered on, green LED is
blinking, pump cycles continuously
instead of turning OFF
Pump control switch (J) is set to
PWR mode. Pump cycling is not
controlled by signal output
Change pump control switch (J) to
signal mode (SIG).
Pump is cycling but there is no
lubricant output from the outlet
Lubricant level in tank/reservoir is too
low
Refill tank/reservoir.
Damaged tank or reservoir
Replace tank/reservoir.
Pump is cavitating
Shake tank/reservoir to redistribute
grease.
Install a follower plate to help
distribute grease during pump
operation.
Pump seals are worn or damaged
Replace pump seals. See Seal
Replacement instructions, page 19.
Pump is cycling slow
Current Control Potentiometer Knob
(G) on motor control board is set too
low
Increase the current limit by turning
the Current Control Potentiometer
Knob (G), clockwise.
Flow Control Potentiometer Knob (H)
on motor control board is set too low
Increase the flow limit by turning the
Flow Control Potentiometer Knob
(H), clockwise.
Pump is cycling, there is output of
fluid at the outlet, pump pressure is
not building
Leakage in a lubrication line
Check lubrication line for leakage.
Replace any lines that are leaking
and/or damaged.
Pump seals are worn or damaged
Replace pump seals. See Seal
Replacement instructions, page 19.