Franklin 5870206300 Diagnostic Fault Codes, Flashes Fault Possible Cause Corrective Action

Diagnostic Fault Codes

Should an application or system problem occur, built-in diagnostics will protect the system. The red “FAULT” light on the front of the SubDrive300 controller will flash a given number of times to indicate the nature of the fault. In some cases, the system will shut itself off until corrective action has been taken. Fault codes and the recommended corrective action for each are listed in the following chart.

#of

Flashes

Fault

Possible Cause

Corrective Action

		Air-locked pump.	Wait for well to recover and
			automatic restart timer to time
1		Overpumped or dry well.
	Motor		out. If the problem does not
		Worn pump. Damaged
	Underload		correct, check motor and pump.
		shaft or coupling. Blocked
		pump or screen.	See description of “Smart Reset”
			on Page 26.
			Check for loose connections.
2		Low line voltage.	Check line voltage. Report low
	Undervoltage		voltage to the power company.
		Misconnected input leads.
			Unit will start automatically when
			the proper power is supplied.
3	Locked	Motor/pump misaligned.	Unit will attempt to free a locked
		Abrasive/Sand-bound pump.	pump. If unsuccessful, check the
	Pump
		Dragging pump or motor.	motor and pump.
4		Reserved for factory use
5			Check motor wiring. Make certain
	Open Circuit	Loose connection.	all connections are tight. Make
		Defective motor or cable.	certain proper motor is installed.
			Cycle input power** to reset.
		When fault is indicated
	Short Circuit	immediately after power-up,	Check motor wiring. Cycle input
		short circuit due to loose	power** to reset.
6		connection, defective cable,
		splice or motor.
		When fault is indicated
	Over Current	while motor is running, over	Check pump.
		current due to loose debris
		trapped in pump.
7	Overheated	High ambient temperature.	This fault automaticallyresets
		Direct sunlight. Obstruction	when the temperature returns to a
	Controller
		of air-flow.	safe level.

**“Cycle input power” refers to turning the power off until both lights fade off, then applying power again.

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