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miller bobcat 225nt blows f1 fuse?

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  • miller bobcat 225nt blows f1 fuse?

    Hello, new to the forum. I have a miller bobcat 225nt with an onan engine. I have replaced the d4 diode and the f1 fuse. For some reason it keeps blowing the fuse. I have checked the r2 rectifier, also checked the new d 4 diode. Checked the capacitor and brush rings also.

  • #2
    Also meant to add....my idle control board popped, will that cause the f1 fuse to keep blowing?

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    • #3
      Disconnect "E" from the idle board, replace the fuse, and see if it pops again.

      It may be a failed SR2, bridge, or failed exciter coil. Tough to call.

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      • #4
        Originally posted by cruizer View Post
        Disconnect "E" from the idle board, replace the fuse, and see if it pops again.

        It may be a failed SR2, bridge, or failed exciter coil. Tough to call.
        pulled the e terminal off....still blew the fuse

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        • #5
          Well, that means a failed SR2 (unlikely but possible), or a failed shorted exciter coil. very likely and big bucks to repair.

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