Lincoln Electric V250-S service manual Capacitor Balance Test

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F-6	TROUBLESHOOTING & REPAIR			F-6
	Observe all Safety Guidelines detailed throughout this manual
	PROBLEMS	POSSIBLE AREAS OF	RECOMMENDED
	(SYMPTOMS)	MISADJUSTMENT(S)	COURSE OF ACTION
		OUTPUT PROBLEMS
Output turns on momentarily, then 1.		Check the input voltages and	1. Check Local/Remote switch (S3)
switches off and repeats cycle.		reconnection procedures. Make	and associated wiring for loose or
		sure the input voltage is correct	faulty connections.
		for the machine. See Input
		Voltage Reconnect Procedure. 2. Check Mode Switch (S2) and
			associated wiring for loose or
	2.	Check or replace remote control	faulty connections.
		device. (If used)
			3. If the machine is connected for
			380VAC input or higher, perform
			the Capacitor Balance Test.
			4. The power board may be faulty.
			Replace.
			5. The control board may be faulty.
			Replace.

Remote output control not	1.	Make sure the Local/Remote	1.	Check the Local/Remote switch
functioning. The machine operates		switch (S3) is in the REMOTE		(S3) and the associated wiring.
normally on LOCAL control.		position.		See wiring diagram.
	2.	The remote control device may	2.	Check for loose or faulty
		be faulty. Replace.		connections at the remote control
				receptacle.

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