Lincoln Electric IM366-B manual General Troubleshooting Guide, Problem Possible Cause What To Do

GENERAL TROUBLESHOOTING GUIDE

WARNING

ELECTRIC SHOCK can kill.

• Disconnect input power by removing plug from receptacle before working inside SP-100.

• Use only grounded receptacle.

•Do not touch electrically "hot" parts inside SP-100.

•Have qualified personnel do the maintenance and troubleshooting work.

Problems

Problem Possible Cause What To Do

No Wire Feed, Weld	Welder not ON (“I”)
Output or Gas Flow	Welder not plugged in
	Gun Cable Damaged
	Trigger Switch Problem
	Circuit breaker or Thermostat Tripped
No Arc, Weak Arc	Poor ground connection to work
	Gun or Power cable connection loose
	Voltage set too low
	Tip too large for wire size
No Wire Feed	Wire spool or reel empty
	Drive Roll size incorrect
	Drive Roll worn
	Wire Drive release open
	Wire welded to tip
	Kink or bend in Wire
	Tip or cable liner to small for wire
	Trigger circuit connections loose
	Dirty or Worn cable liner

Wire feed too fast or slow Wrong speed set for work

Turn welder power ON (“I”)

Plug in - check both ends of input cable Inspect or Replace

Repair or Replace

See “Overload Protection Shutdown” Section Check ground connection

Check - repair or replace cable or connectors Adjust Voltage

Use correct tip

Install new spool or reel

Change Drive Roll - Refer to proper section Replace

Close wire drive release Peel wire off or use new tip Remove wire, cut out kink, reload wire Insert correct tip or liner

Check connections

Clean or Replace - Refer to proper section Adjust wire feed speed at machine

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