Brother LK3-B448E Errors generated when optional equipment is connected, Reference

16. Table of error codes

Code	Cause	Remedy
	Home position cannot be detected	Turn off the power and check the connection of home
E-A0	(malfunction of home position sensor), or
		position sensor connector P1.
	malfunction of power supply circuit board.
	You tried to change the program number	Press the RESET switch.
E-b0		Set DIP switch A-8 to OFF before trying to change the
	when DIP switch A-8 was set to ON.
		program number.
	Button attachment error	Remove the cause of the error at the robot.
E-C3	●Button feeding error	●Press the MANUAL switch on the button feeder to
		feed the buttons.
	●Button blockage	●Refer to section 10-15.
	●Button feeder is in adjustment mode	●Press the RESET switch to stop the buzzer from
		sounding.
		The error code display will not disappear until
		adjustment mode has been canceled.
E-d0	Heat sink of control circuit board is	Turn off the power and clean the air intake port of the
	abnormally hot.	box.
	Malfunction of EEPROM (malfunction of main	Turn off the power, and turn it back on. If the error
E-E0		continually occurs, contact a qualified service
	circuit board).
		technician.
	Corrupted EEPROM data, or main PROM	Press the RESET switch to reset the error. However,
		the data (memory switches, display and user
E-E1	version has been upgraded.
		programs) will be reset to the backup data or initialized.
	Corrupted EEPROM control information data.	Press the RESET switch to reset the error. However,
E-E2		the data (memory switches, display and user
		programs) will all be initialized.
	Solenoid short-circuit (malfunction of main	Turn off the power and contact a qualified service
E-F0	circuit board), or power relay is not operating
		technician.
	(malfunction of power supply circuit board).
E-F1	Bad connection in cable between power	Turn off the power and check if connectors P16 is
	supply circuit board and main circuit board.	disconnected.
E-F2	Abnormal current detected in power supply	Turn off the power and contact a qualified service
	circuit board.	technician.

■Errors generated when optional equipment is connected

Code		Cause	Remedy
			Turn the EMERGENCY STOP switch clockwise to
E-10	Emergency stop switch was pressed.		release the lock, and then press the RESET switch to
			reset the error.
			Turn the EMERGENCY STOP switch clockwise to
E-11	Emergency stop switch was pressed during		release the lock, and then press the RESET switch to
	sewing.		reset the error. You can then press the STEP BACK
			switch to repeat the sewing.
	Emergency stop switch is being continually
E-12	pressed, or emergency switch connection		Turn off the power and check.
	error.
			Turn the EMERGENCY STOP switch clockwise to
E-14	Thread breakage detected.		release the lock, and then press the RESET switch to
			reset the error. You can then press the STEP BACK
			switch to repeat the sewing.

REFERENCE	segment LED alphabet
	Panel display
	Text display	A	b	c	d	E	F	6	H	L	o
66				LK3-B448E MARKII/BA-16