8
Flashes
/Beeps
Condition Potential Causes Proposed Action
1
Under Load Low fuel level in the
storage tank
Or
Obstructions in Motor
Intake
Or
Calibrated with product
flow
Note: If Auto Restart Switch is set in the ON position once fuel is again above
the PMA end bell and the hook signal is reapplied the STP-SCI will
restart with out pushing the reset button.
1. Check fuel level in storage tank; schedule fuel delivery, when delivery is
complete and fuel level is above PMA end bell push reset button on STP-
SCI. Check for correct system operation. If fuel levels are within acceptable
range, the STP-SCI may need to be recalibrated if it was previously
calibrated with air in the lines or with product flow.
2
Low
Incoming
Voltage
Voltage fluctuations or
low input voltage
Note: STP-SCI will automatically restart when the voltage returns to
acceptable operating range.
1. Use AC voltmeter to verify incoming voltage is within the 208-240VAC
acceptable range. If voltage is not within this range, contact an electrician to
correct problem. If voltage is within acceptable range and condition is still
present after resetting, recalibrate controller per “Calibration” section.
3
Overload Short in wiring from STP-
SCI to PMA
Or
Incorrectly wired through
capacitor
Or
Foreign material in PMA
or rotor within motor is
locked up
1. Check and verify wiring is correct from STP-SCI to motor (shorts or
incorrectly wired capacitor). If condition is corrected, check for proper
operation. If operating correctly, do not continue with next step. If condition
is still present, continue to next step.
PMA Replacement/Inspection
2. Disconnect input voltage at load center, lock and tag out circuit breakers.
3. (See PMA Replacement Instructions P/N 400289002, included with New
PMA) 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.
4. Pull extractable part of the pump.
Note: Pump Motor Assembly shell can be damaged by blows from hard
surfaces, use care in removing.
5. Remove black end cap from PMA and attempt to spin rotor with a 3/16”
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 FE
Petro use), proceed with step 7. If no binding or physical damage to PMA,
reinstall extractable by following the previous steps in reverse order and
then continue to the next step.
Note: PMA can have a locked rotor during startups if it has been exposed to
a corrosive environment, such as a tank ballasted in water.
6. Turn on power to the STP-SCI unit and verify correct system operation. If
condition is corrected, do not continue to next step. If condition is still
present, remove the extractable by repeating steps 2 through 4 and then
continue to next step.
7. Remove four 5/16” cap screws that connect the PMA with a ¼” Allen wrench
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 and proper alignment,
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-SCI unit and verify correct system operation.
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