12
Flashes/Beeps
Condition
Potential Causes
Proposed Action
3
(Continued on
next page)
Locked Rotor/
Overload
Foreign material in
PMA or rotor within
motor is locked up.
1. Push reset button and hold in for three seconds.
2. If condition is corrected, check for proper operation of
system; if operating correctly do not continue to next step. If
condition is still present continue to next step.
PMA Replacement/Inspection for 3/4 & 1.5 hp pumps
3. Disconnect input voltage at load center, lock and tag circuit
breakers.
4. (See PMA Replacement Instructions P/N 400289002)
Disengage the 3/4” securing bolt of the electrical connector
and swing out of the way. Remove two 9/16” bolts from
extractable portion of the manifold.
5. Pull extractable part of the pump.
Note:
Pump Motor Assembly shell can be damaged by blows
from hard surfaces, use care in removing.
6. Remove black end cap from PMA and attempt to spin rotor
with a ¼” Allen wrench to determine if there’s any binding.
If rotor does not spin freely and/or there is physical damage
(note this on a warranty claim form for Franklin Fueling
Systems use), proceed with the next step. If no binding or
physical damage to PMA, and it is a new installation, reinstall
extractable.
Note:
PMA can have a locked rotor during startups if it has been
exposed to a corrosive environment, such as a ballasted
tank.
Turn on power to the STP-SCIII unit and verify correct system
operation. If condition is corrected, do not continue to next step. If
condition is still present, remove the extractable (repeat steps 3, 4,
& 5) and continue to next step.
7. Remove four 5/16” cap screws that connect the PMA and
remove the PMA from the motor discharge head.
Note:
Prior to mounting a new PMA, check lead assembly (wires
inside the extractable portion to PMA) for shorted wires
which may have caused the condition.
8. Replace with new PMA.
Note:
Pump motor shell can be damaged by blows from hard
surfaces, use care in replacing.
9. Re-install extractable and secure by following reverse order
of disassembly.
10. Turn on power to the STP-SCIII unit and verify correct system
operation.
PMA replacement/inspection for 3 & 5 hp pumps
1. Disconnect input voltage at load center. Lock and tag circuit
breakers.
2. Pull extractable portion of the pump.
3. Remove 4 socket head cap screws and 4 lock washers
securing PMA to STP.
4. Place 2 push rods and 2 headless set screws (furnished with
replacement PMA) in holes opposite each other.
5. Turn set screws clockwise until pressure is felt, then
alternately turn each screw until PMA is free of connector
housing.
