Brother HE-800A manual 94

￿			14. ERROR CODE TABLE
￿
Code	Cause		Remedy
		1.	Turn off the power and check that the feed mechanism is
			normal and that the work clamp moves smoothly.
E-20	Feed and work clamp motor overcurrent	2.	Check that connectors P2 and P5 on the sub P.C. board
			are properly connected.
		3.	Check that connector P22 on the main P.C. board and
			connector P10 on the sub P.C. board are properly
			connected.
		1.	Turn off the power and check if the zigzag mechanism
E-21	Zigzag motor overcurrent		moves smoothly.
		2.	Check that connector P16 on the main P.C. board is
			properly connected.
		1.	Return the treadle to the neutral position.
E-30	Treadle is depressed to step 2.	2.	If an error still occurs after 1. is carried out, check that
			connector P7 on the main P.C. board is properly
			connected.
		1.	Return the treadle to the neutral position.
		2.	If the error still occurs after step 1 is carried out, adjust the
E-31	Treadle is depressed to step 1.		threshold value for memory switch No. 08 to a positive
			value.
		3.	Check that connector P7 on the main P.C. board is
			properly connected.
		1.	Return the treadle to the neutral position.
		2.	If the error still occurs after step 1 is carried out, adjust the
E-32	Treadle is depressed backward.		threshold value for memory switch No. 07 to a negative
			value.
		3.	Check that connector P7 on the main P.C. board is
			properly connected.
		1.	Turn off the power and check that the inside of the control
E-40	Control circuit board heat sink is		box is being properly ventilated.
	overheating.	2. Clean the filter of the air intake and the cooling fan.
			(Remove dust.)
		1.	Turn off the power and clean the inside air circulation
			cooling fan. (Remove dust.)
E-41	Inside air circulation fan problem	2.	Check that connectors P13 and P20 on the main P.C.
			board are properly connected.
		3.	Check that connectors CN2, CN3 and CN4 on the 1-step
			power supply circuit board are properly connected.
		1.	Turn off the power and clean the exhaust cooling fan.
			(Remove dust.)
E-42	Exhaust fan problem	2.	Check that connectors P1 and P20 on the main P.C. board
			are properly connected.
		3.	Check that connectors CN2, CN3 and CN4 on the 1-step
			power supply circuit board are properly connected.
		1.	Turn off the power.
		2.	Check that connector P3 on the sub P.C. board is properly
			connected.
		3.	Check that connectors P3 and P4 on the 2-step power
E-44	2-step power supply circuit board +55V		supply circuit board are properly connected.
		4. Check that connectors P10 and P13 on the sub P.C. board
	relay error		are properly connected.
		5.	Check that connectors P22 and P23 on the main P.C.
			board are properly connected.
		*	This error can occur if a three-phase sewing machine is
			used with a single-phase power supply.
E-51	X pitch error	Turn off the power and initialize the parameter settings.
E-52	Y pitch error	Turn off the power and initialize the parameter settings.
E-53	Multi-working knife error	Use the programming device (the programming software for
		the electronic pattern sewer or a programmer) to delete
		multi-working knife operations.
E-54	Overall cycle program stitch no. error	Clear the cycle program to reset the error automatically.
	(Exceeds 3,000 stitches.)

HE-800A 86