Chamberlain LA412, LA412-S Diagnostic Chart, FLASHES, FLASHES, FLASHES, FLASHES, FLASHES, FLASHES, damaged, FLASHES, FLASHES, Power ON, Capacity, or damaged, Low Battery

Diagnostic Chart

Your gate operator is programmed with self-diagnostic capabilities. The diagnostic LED will flash a number of times then pause signifying it has found a potential issue. Consult Diagnostic Chart below.

	CONTINUOUS
			Operator is in sleep mode. Normal Operation
	FLASHES (Heartbeat)
	Power ON
			Stop is not connected.
	2	FLASHES
			• Check to make sure the jumper wire is connected between the COM and STOP input on
	STOP not connected
			the control board. Stop is an NC (normally closed) input.
	3	FLASHES	Battery voltage is below the recommended operating level.
			• Battery may not be properly charged. Disconnect all batteries and make sure AC power
	Low Battery Voltage
			or solar power is connected. Verify AC power outlet.
			• Verify that the battery fuses are intact and not blown. Replace blown fuses with same
			type and rating.
			• Batteries are no longer capable of holding a charge due to age or excessive depleting of
			the battery. Replace the batteries (see accessories page). Dispose of old batteries
			properly.
	4	FLASHES	Battery does not have the capacity to operate the gate operator.
			• Battery may not be properly charged. Disconnect all batteries and make sure AC power
	Low Battery
			or solar power is connected. Verify AC power outlet.
	Capacity		• Verify that the battery fuses are intact and not blown. Replace blown fuses with same
			type and rating.
			• Batteries are no longer capable of holding a charge due to age or excessive depleting of
			the battery. Replace the batteries (see accessories page). Dispose of old batteries
			properly.
	5	FLASHES	Gate 1 has encountered an obstruction or the wiring to the arm is disconnected, damaged
			or miswired.
	RPM Reversal Gate 1
			• Make sure the path of the gate is clear and the gate moves freely.
	or in manual release
			• Incorrect or bad connection to Gate 1 arm. Check the green and white wires on the
	mode. Wiring to the
			motor arm to make sure connections are correct and secure.
	arm is disconnected
			• Bad arm or control board.
	or damaged
			Gate 1 has encountered an obstruction.
	6	FLASHES
			• Make sure the path of the gate is clear and the gate moves freely.
	Force Reversal Gate 1
			• If there is no obstruction the force adjustment is set too low. Increase the force setting
			and verify that the gate moves without reversing and will reverse if an obstruction is
			encountered.
	7	FLASHES	Gate 2 has encountered an obstruction or the wiring to the arm is disconnected, damaged
	RPM Reversal Gate 2		or miswired.
			• Make sure the path of the gate is clear and the gate moves freely.
	or wiring to the arm
			• Incorrect or bad connection to Gate 2 arm. Check the green and white wires on the
	is disconnected or
			motor arm to make sure connections are correct and secure.
	damaged
			• Bad arm or control board. Press the LEARN LIMITS button and press the GATE 2
			buttons to move the arm. If the arm does not move continuously, disconnect arm from
			Gate 2 and connect the arm to the Gate 1 connector and repeat the attempt to move the
			arm. If the arm does not move continuously on either Gate 1 or 2, replace the arm.
	8	FLASHES	Gate 2 has encountered an obstruction.
	Force Reversal Gate 2		• Make sure the path of the gate is clear and the gate moves freely.
			• If there is no obstruction the force adjustment is set too low. Increase the force setting
			and verify that the gate moves without reversing and will reverse if an obstruction is
			encountered.
	9-11	FLASHES	Potential RAM, Flash, or EEPROM failure.
	Potential chip failure		• Turn power off and on.
			• If problem is not resolved by turning the power off and on, replace the control board.
Operation and Maintenance			40