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Lincoln, SP 175 plus question

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  • Lincoln, SP 175 plus question

    I have a probably 10 year old welder that I have never had a problem with but the other day when I went to weld some truck body replacement panels and when I turned the welder down below 3 or 4 the wire feeder stops turning, it's not the liner that is clogged, I checked to make sure by just using the welder with the wire roller flipped out of the roller cam.

    the welder is in my unheated shop all the time unless I am in there working so humidity may be my problem because of the feed motor wires may be corroded from the temp humidity.

    Or maybe it is because I never used it that low and in that case it could be the wire speed control, anyone have any ideas how to test there parts individually?