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XMT 300 - buzzing noise when turn contactor switch ON

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  • XMT 300 - buzzing noise when turn contactor switch ON

    I'll try to keep this simple... Picked up a XMT 300 for a good price. Got it hooked up on 230v/50a. Turns on no problem, and actually welds fine. The only concern i have is the buzzing sound it makes as soon as I flip the "Output (Contactor) switch to the ON position. Doesn't make a sound if that switch is off. Anyone have any insight on this issue? Thanks in advance

  • #2
    Heres a video to make things alittle easier.

    https://www.youtube.com/watch?v=NlL5Q9wa5CE

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    • #3
      Quite normal for this unit

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      • #4
        That seems to be the answer i've been getting. Good deal, Thanks for the response

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