Lincoln Electric V250-S service manual Possible Areas Recommended Symptoms, Course of Action

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F-4	TROUBLESHOOTING & REPAIR				F-4
	Observe all Safety Guidelines detailed throughout this manual
	PROBLEMS		POSSIBLE AREAS OF	RECOMMENDED
	(SYMPTOMS)		MISADJUSTMENT(S)	COURSE OF ACTION
			OUTPUT PROBLEMS
Major physical or electrical damage		Contact your local Lincoln		Contact Lincoln Electric Service
is observed when cover wrap-around		Authorized Field Service Facility.		Department (216)-383-2531	or
is removed.				1-800-833-9353
The machine is dead - no output -		1. The input power switch must be		1. The power switch (S1) may be
no fan.			in the ON position.	faulty. Check or replace.
		2.	Make sure the input voltage is	2. Check for loose or broken leads
			correct for the machine.	between the power switch (S1)
				and the input rectifier D9. See
		3.	If the machine is set for single-	wiring diagram.
			phase operation, inspect to
			assure that the WHITE and	3. Perform the Auxiliary
			BLACK leads are connected	Transformer Test.
			properly and the RED lead is not
			connected and is insulated.
		4. Check that the input voltage set-
			up switch and jumper “A” (the
			reconnect auxiliary jumper) are in
			the proper position for the input
			voltage being applied. Refer to
			Input Voltage Reconnect
			Procedure in the Installation
			Chapter.
		5. Check continuity of the 0.6-amp
			slow blow fuse located on the
			reconnect panel.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353.

INVERTEC V250-S