Question about Lincoln Electric Lincoln Easy MIG 140 Welder 120 Volts 140 Amps

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Lincoln hd 140 barely sparks

Haven't used welder in 6 months or so tried sat and it will barely spark any ideas?

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  • bryan lawless
    bryan lawless May 06, 2014

    Check the obvious first. Tighten tip in gun, grind off a place for a good ground. Check to make sure your selector swith and rheostats are turning and engaging as they should. If it still doesn't work try a squirt or two of electronic cleaner in the rheostat(arc/puddle control knobs). With the machine unplugged of course! If and only if your comfortable with it take the cover of and look for obvious signs of corrosion, oxidation, condor nest or burnt wires. A 140 amp machine will kill you dead. Unplug it. Avoid touching or safely discharge the capacitors. Good luck. Bryan



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Try switching the a,b,c,d back and forth a couple of times a corrosion builds up and causes a week contact so there isn't enough voltage to work . This has happened to me a couple of times . The first time the fan was running and I had no wire feed action and then a local repair guy told me that corrosion is very common with the portable Lincolns . You shouldn't even have to take it apart to clean it just switch it back and fourth and that does the trick. Good luck.

Posted on May 10, 2014


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Posted on Jun 14, 2011

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