Lincoln Electric 400 (AU) manual Your local Lincoln Authorized, Field Service Facility

The welding arc is “cold.” The weld- 1. Make sure the MODE selector ing arc is not stable or is not satis- switch is in the correct position for factory. the engine runs normally. the process being used. (For exam-

The auxiliary power is normal.ple, CV-WIRE, PIPE, CC-STICK.) 2. Make sure the electrode (wire, gas,

voltage, current etc.) is correct for the process being used.

3. Check for loose or faulty connec- tions at the weld output terminals and welding cable connections.

4. The welding cables may be too long or coiled, causing an excessive voltage drop.

5. Faulty Control Board.

E-6	TROUBLESHOOTING	E-6
	Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

			If all recommended possible areas of
			misadjustment have been checked
			and the problem persists, Contact
			your local Lincoln Authorized
No output in Pipe Mode.	1. Make sure VRD ON/OFF toggle
			Field Service Facility.
		switch is in the “OFF” position.
	2. Poor work lead connection to
		work. Make sure work clamp is
		tightly connected to clean base
		metal.
	3.	"Weld Terminals" switch in wrong
		position. Place switch in "Weld
		Terminals On" position when
		welding without control cable.
	4.	Faulty PC board or welder alterna-
		tor.
VRD Lights don’t light up.	1.	Ensure VRD ON/OFF switch is in
		the “ON” position.
	2.	If light is burned out, replace both
		VRD lights.
	3. Faulty OCV indicator PC board.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

VANTAGE® 400 (AU)