Lincoln Electric V205-T service manual Output Problems

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

F-4					F-4
	TROUBLESHOOTING & REPAIR
	Observe Safety Guidelines			TROUBLESHOOTING GUIDE
	detailed in the beginning of this manual.
	OUTPUT PROBLEMS	POSSIBLE AREAS OF		RECOMMENDED
	(SYMPTOMS)	MISADJUSTMENT(S)		COURSE OF ACTION
		OUTPUT PROBLEMS
Major physical or electrical damage		1. Contact your local authorized		1. Contact the Lincoln Electric
is evident when the sheet metal		Lincoln Electric Field	Service	Service Department 1-800-833-
cover(s) are removed.		Facility for assistance.		9353.
The machine is dead—no fan –no		1. Make sure the input	power	1. Check the input power switch for
output—no LEDs.		switch is in the ON position.		proper operation. Also check the
		2. Check the main input fuses. If		associated leads	for loose or
				faulty connections.	See wiring
		open replace.
				diagram.
		3. Make sure the correct input volt-		2. Perform the Input Filter Board
		age is applied to the machine.
				Test.
The main input fuses or breakers		1. Make certain the fuses or break-		1. The Input Filter Board may be
repeatedly fail.		ers are properly sized for the		faulty. Perform the Input Filter
		input draw of the machine.		Board Test.
		2. The welding procedure may be		2. The Main IGBT Inverter Board
		drawing too much input current		may be faulty.	Perform the
		or the duty cycle may be too		Main IGBT Inverter Board Low
		high. Reduce the welding cur-		Voltage Supply Test.
		rent and/or reduce the duty
		cycle.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-800-833-9353(WELD).

V205-T AC/DC