Burnt Resistor and more? Welder PCB

Discussion in 'Technical Repair' started by callmedaniel, Oct 16, 2016.

  1. callmedaniel

    Thread Starter New Member

    Oct 16, 2016
    2
    0
    Hello all I wanted to throw this question out there and see if I could get some advice on how to fix my issue. I have a Welder that had some wires chewed by some rats, upon opening the welder and fixing the wiring issue a leaf fell ontop of the circuit board and when i started it up it caught on fire. Not sure if the leaf itself caused the problem or maybe there is an underlying situation. Here are two pics top and bottom. Thanks for any insight you can give me.

    Dan
     
  2. callmedaniel

    Thread Starter New Member

    Oct 16, 2016
    2
    0
  3. #12

    Expert

    Nov 30, 2010
    16,284
    6,797
    The way that middle resistor shattered tells me about more heat than a burning leaf can make. (It's a ceramic core.)
    You really have to start with a schematic to find out what all those parts are, then find what circuit failure shattered that resistor.
    ps, I don't think you can drive a welder to the grocery store. Might be in the wrong Forum.
    I think I'll try, "Technical Repair".
     
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