STP-SCI Fault Indicators ("Blinking Error Codes")

This article is about troubleshooting the fault codes as indicated by the blinking lights on the front of the single-phase STP-SCI Smart Controller.

Before Starting:

Before troubleshooting any STP or motor controller we need to verify there is more than 8" of fuel in the tank if there is less than 8" the site will need to get a delivery before we can continue troubleshooting. Remember the UMP (motor) should be 5" off the bottom of the tank. 

Number of Blinks	Indicator	Cause
1	Underload	Dry Run, or Calibrated with Flow
2	Low Input Voltage	Bad Input Power (from breaker)
3	Overload	Locked Motor or Bad Wiring
4	Open Circuit	Thermal Overload of Motor or Open Circuit
8	Uncalibrated	Requires Electrical "Calibration Snapshot"
9	Extended Run	Motor Running 60 Minutes with No Flow Change
10	Relay Fault	Pump Running with No Hook Signal