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Millermatic 251 - wirefeed display error

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  • Millermatic 251 - wirefeed display error

    [ATTACH=CONFIG]n575602[/ATTACH] Hello all,

    This is my first post here, but pleased to see all this information is available.

    A few days ago the wire speed disply on my Millermatic 251 went berzerk. The observed feed rate seems normal, but the display read ridiculously high numbers in the 500-600 range. When I adjusted the dial down I got more gibberish as seen in the attached photos. Accompanying this malfunction was an erratic and rapic burn back, making a sputtering and intermittent weld. I blew out the welder with compressed air and blew out the liner. Ihad just changed over from .045 dual shield to .035 solid wire.

    Any ideas?

    -Adair

    Edit: I need a minute to fix the images...
    Last edited by Adair; 12-12-2016, 10:45 AM.

  • #2
    Attached photos: Click image for larger version

Name:	weld 1.jpg
Views:	39
Size:	41.1 KB
ID:	575605 Click image for larger version

Name:	weld 3.jpg
Views:	40
Size:	41.4 KB
ID:	575606 Click image for larger version

Name:	weld 2.jpg
Views:	33
Size:	43.1 KB
ID:	575607

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    • #3
      Common fault, merely replace the front display board.

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      • #4
        Thank you Cruzer, I will see if I can do that on my own.
        -Adair

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