Close right side door MX-4141

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  • xring1958
    Trusted Tech

    100+ Posts
    • Mar 2016
    • 166

    #1

    Close right side door MX-4141

    Have a MX-4141 that says to close the right side door. We have checked the Micro switches front & rear replaced PCU Board & AC Control Board.
    Checked 24 V from DC Board still no go. when we do the sim we don't get a change of state when switches activated. Any help is appreciated.
  • ZOOTECH
    Senior member of CRS

    Site Contributor
    2,500+ Posts
    • Jul 2007
    • 3374

    #2
    Re: Close right side door MX-4141

    Originally posted by xring1958
    Have a MX-4141 that says to close the right side door. We have checked the Micro switches front & rear replaced PCU Board & AC Control Board.
    Checked 24 V from DC Board still no go. when we do the sim we don't get a change of state when switches activated. Any help is appreciated.
    You might have a pinched wire in the harness to the right door connector - try loosening the ty-wraps, especially where there might be the 'notorious sharp' edge of the frame.
    "You can't trust your eyes, if your mind is out of focus" --

    Comment

    • woko
      Technician
      • Jun 2017
      • 44

      #3
      Re: Close right side door MX-4141

      Originally posted by xring1958
      Have a MX-4141 that says to close the right side door. We have checked the Micro switches front & rear replaced PCU Board & AC Control Board.
      Checked 24 V from DC Board still no go. when we do the sim we don't get a change of state when switches activated. Any help is appreciated.
      I had the same fault on a MX5141 last week, it turned out to be the top 6.3 amp ( soldered in) fuse on the DC board, I know you have changed the dc board but it may be worth a look on the old board to see if the fuse has blown and the same on the replacement board.

      Woko

      Comment

      • xring1958
        Trusted Tech

        100+ Posts
        • Mar 2016
        • 166

        #4
        Re: Close right side door MX-4141

        Originally posted by woko
        I had the same fault on a MX5141 last week, it turned out to be the top 6.3 amp ( soldered in) fuse on the DC board, I know you have changed the dc board but it may be worth a look on the old board to see if the fuse has blown and the same on the replacement board.

        Woko
        And the Winner is WOKO . The call was being run by two of my Junior techs one with little electrical experience & other really just a trainee. Neither chased the door switch wire back to the DC PWB Connector. I did and of course no 24 volts. Checked Top fuse & of course 24 V on other side. It made a good learning experience. It just reminds me much better Machines are now and how few electrical issues present themselves since I started.

        Thanks for each of your input.

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