Lincoln 140HD draws 35 Amps, trips breaker (should draw 20 Amps max)
by Jim Wings
(Saint Louis, MO)
I have never welded before, and I just purchased a Lincoln 140HD wire fed welder. It is supposed to operate on a 20 Amp, 120 Volt electric circuit. I am trying to practice putting down a weld, but the 20 Amp house circuit breaker trips after about 10 to 15 seconds of welding. I put an amp meter on the 120 Volt input line, and when welding, the welder is drawing 35 to 40 Amps (fluctuates). The welder is obviously drawing too many amps for the 20 Amp electric circuit. So what am I doing wrong? I am practicing on a 1/2 inch piece of steel. Just trying to lay down a bead. I am not trying to weld 2 things together. Is the 1/2 inch thickness of the steel the problem? Does the thickness of what you are welding affect the amperage that the welder draws? I tried various amperage settings on the welder, all the same results. Thanks.
--------------------------------------------------
Jim,
It sound like you have a legitimate beef with Lincoln.
It should not be drawing that much amperage unless something is screwed up.
I get a lot of emails from people popping breakers using 115 volt mig welders on a 15 amp breaker. But yours is on a 20 amps as recommended.
I dont have an answer.
I dont think the thickness of the steel should be making it draw that much amperage.