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Bonanza problems

Scheduled Pinned Locked Moved Bonanza Professional
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  • D Offline
    D Offline
    davidcrum
    wrote last edited by
    #1

    I just purchased this products two days ago, was having a blast flying it!!! This morning it shows on the annunciator low bus volts. After a lot of research, I found the reason, the fix, turn off all of the lights.

    The next problem is, the GTN 750 will not turn on.

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    • M Offline
      M Offline
      MiRexer
      wrote last edited by MiRexer
      #2

      Did you check for failures on the tablet? The other thing to check for is hardware bindings for the alternator.

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      • Black SquareB Offline
        Black SquareB Offline
        Black Square
        Black Square Developer
        wrote last edited by
        #3

        As you probably know, the lighting itself has nothing to do with the low voltage light. The annunciator illuminates when the bus voltage is being dragged down by electrical loads (of which the lights are one), and the engine's RPM is insufficient for the alternator to boost the bus voltage above the trigger level.

        Which GTN are you trying to use? The PMS50 GTN? I haven't heard about any issues lately, so I just suggest making sure your GTN is up-to-date. Let me know if there is anything else I can help with.

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        • D Offline
          D Offline
          davidcrum
          wrote last edited by
          #4

          I did check the tablet for failures (there were none, and I turned failures off)

          I was idling, will increase that a touch.

          I am using the 750, used the link that was provided, but I am going to check that again. Just need to figure out HOW to get it to turn on, lol. The older ones do turn on.

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          • D Offline
            D Offline
            davidcrum
            wrote last edited by
            #5

            Turning off all the lights did work and the GTN did turn on. Think my next question is going to be a no, but is there a way in state saving to have the lights already configured to be turned off (the way I leave the AC, yes, I do not start cold and dark, lol)

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            • Black SquareB Offline
              Black SquareB Offline
              Black Square
              Black Square Developer
              wrote last edited by
              #6

              You're saying the GTN turns on when you turn off the lights? I'm not sure what to make of that, since the circuit power uses the underlying electrical simulation, which does not account for voltage drop. Are you draining the battery an enormous amount before starting, and then leaving the engine at idle RPM? Perhaps a video would be helpful to diagnose this one.

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