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Another MM135 with wire feed issues

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  • #16
    I know this is an old post, but I'm having the exact same issue. I'm not seeing PTC1 on my board, but maybe I'm just missing it.
    My welder is 180 Autoset, and I was hoping to try replacing the same part since I have narrowed my issue down to the board as well.

    Does anyone have a picture of what the PTC part is or know what it would be labeled on my board?

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    • #17
      Hi Euler, did you check to see if your motor runs off a (current controlled) voltage source? The PTC is typically a 3/8"-1/2" yellow disc sticking up on your board.

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