TROUBLESHOOTING CHART
SYMPTOM
CAUSE AND REMEDY
Actuator does not respond
Blown fuse in line. Check for
to signal. Motor feels warm
short circuit or overload.
but drive pulley does not rotate.
Faulty capacitor. Replace capacitor.
Coupling nut is not at end
of travel.
Setscrew on motor shaft is loose.
Be sure setscrew is centered on
shaft flat side and tightened.
Drive motor is stalled. Realign
binding drive parts-make sure
there is freedom of movement and
pump control shaft moves freely
in both directions.
Faulty limit switch. Replace switch
(see Limit Switch Replacement).
Open circuit. Repair or replace
faulty connections, broken wires,
etc.
Broken drive belt. Replace drive
belt (see Drive Belt/Pulley/Motor
Replacement).
Actuator does not respond to
Blown fuse in line. Check for
signal. Motor case feels
short circuit or overload.
cold but coupling nut is not
Faulty or improperly positioned
at either end of travel.
limit switch. Readjust or replace
limit switch (see Limit Switch
Replacement).
Open circuit. Repair or replace
faulty connections, broken wires,
etc.
Controller not functioning. If
controller is inoperative, send
for factory repairman.
Actuator goes to end of
Signal controller not properly
travel and stops-no
calibrated to pump. Adjust
further response.
controller to match range of
actuator.
Improper signal to controller.
Check input signal to controller
and compare with controller data
sheet specifications.
Faulty limit switch. Replace
switch (see Limit Switch Replacement).
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