SCI TIMER TROUBLE SHOOTING
LIGHT (OR LOAD) WILL NOT TURN ON:
1) Check operation of light independently of the timer circuit to insure that it is operational.
2) Test the timer by removing the connection to "ARRAY +" and waiting about 15 minutes. Note: The SCT must have a light or load connected for the test. The output will not register on a meter.
3) Test for high ambient light conditions at the array. If array voltage does not drop below .5 volts, the timer will not turn the load lights on. Use the photocell accessory mounted in a shielded location to get the light to turn on in high ambient lighting situations.
LIGHT TURNS ON DURING THE DAY:
1) The SCT monitors array voltage to determine sundown. Some shunt controllers shunt the array for longer than the 15 minute delay of the timer, indicating sundown. The alternatives are to use a different controller (the ASC series of controllers manufactured by Specialty Concepts is well matched with the SCT) or to use the photocell accessory to monitor daylight.
LIGHT WILL NOT TURN OFF:
1) Check to see that the light negative is not connected to battery negative, or ground. The SCT is a positive ground device, so it switches the negative leg of the load circuit.
LIGHT TURNS ON TOO SOON OR TOO LATE:
1) Use the photocell accessory to adjust sensitivity to ambient lighting.