Lincoln Welding Tools - Recent Questions, Troubleshooting & Support


best to call Lincoln or the welding shop you bought it from.

Lincoln Welding... | Answered on Jan 18, 2021


Most mig welders use an electro-mechanical contactor to switch the welding current through to the torch and others use an electronic means.

The heavy current transformer, rectifier and chokes are robust and rarely fail. If welding a high duty cycle they are protected by a thermal breaker that cuts the power until the unit has cooled.

You need to check welding current is available from the transformer, through the rectifier and choke and if so the problem is likely with the contactor.

Lincoln Welding... | Answered on Apr 20, 2020


What are you wiring? Power Cord? Fan? Transformer? You should see a white wiring block in the lower right corner if you are looking from the back. On the two top post the black and white wires are attached. The green ground wire is attached to the case. On the two bottom poles the fan lines attach one on each side and the transformer wires that are coming up from the transformer are attached on the same poles as the fan wires.

Lincoln Electric... | Answered on Apr 16, 2020


It has been my experience the best flat welding rod is 7024. It is easy to use and forgiving of contact sticking. It has a heavy coating making it easier to keep a consistant gap between rod and workpiece. I always liked 7018 for vertical welding. I hope this helps you out.

Lincoln Welding... | Answered on Jan 21, 2020


probably circuit board, i might have one , email me user name hoss805 on layitlow.com

Lincoln Electric... | Answered on Sep 16, 2019


Call Lincoln Electric. A Lincoln service Center will help also.

Lincoln Welding... | Answered on Jun 16, 2019


The best upgrade to do first is upgrading the pitiful ground clamp that comes on these, same for any modern welder, I got one from Harbor Freight for $90, and a Lincoln for $369, both had the same pitiful ground clamp. I'll attach a picture/link to a sufficient clamp- it made a huge difference with mine! Tips and the Wire You Use can make a big difference too! Larger Wire is Helpful Too- I'm talking about larger gauge wire that runs to attaches to your ground clamp, try the clamp first and see if it helps, be sure your settings are right and you're plugged directly in to a good power source, no extension cords! https://www.ebay.com/itm/300Amp-Earth-Ground-Clamp-Welding-Manual-Welder-for-Professional-Use-175mm/132064190663?hash=item1ebfa3a0c7:g:yFoAAOSw259cTqxO
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Lincoln Welding... | Answered on Mar 09, 2019


I would say there is no electrical contact on that setting. Check this first. Good Luck Friend.

Lincoln Welding... | Answered on Oct 02, 2018


all welders have a duty cycle
That is the length of time that welding can take place before the system shuts down
The time period depends on the amps setting and the higher the amps , the shorter the time
welding at 140 amps the time can be as short as 3 minutes
welding at 20 amps it can be as long as 20 minutes
the duty cycle is normally calculated at around 10% use and 90% cool down

Lincoln Welding... | Answered on Sep 21, 2018

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