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Thread: Electrical issue Sport Cub

  1. #1
    Member
    Join Date
    Jul 2013
    Location
    whiteville nc
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    38

    Lightbulb Electrical issue Sport Cub

    After I came in this afternoon and shut down, the over volt/under volt light started glowing and got brighter as I got out of the cockpit. I cycled the master and it did the same thing. I popped all the circuit breakers and turned the master on again. Once again the light would go off with master on and the when the master is turned off, start glowing and get brighter. I reset all the circuit breakers and cycled the master several more times and it finally stayed off. Battery indicates 12.6 volts. Any suggestions as to cause? Master solenoid?

  2. #2
    Senior Member Pete D's Avatar
    Join Date
    Jan 2010
    Location
    Yakima, WA
    Posts
    938

    Default Re: Electrical issue Sport Cub

    I would start by taking a look at the alternator fuse holders, see if there is any issue there. There is a Service Bulletin covering these parts.

    http://www.cubcrafters.com/technical...ations/30/view

    Also, inspect the connectors or pigtail crimps on the voltage regulator in that area. Sometimes a loose crimp can buildup resistance, then heat, and that can cause issues.

    And per this SB: http://www.cubcrafters.com/technical...ations/10/view It is an Over Voltage light

    Pete


    Quote Originally Posted by ncshp View Post
    After I came in this afternoon and shut down, the over volt/under volt light started glowing and got brighter as I got out of the cockpit. I cycled the master and it did the same thing. I popped all the circuit breakers and turned the master on again. Once again the light would go off with master on and the when the master is turned off, start glowing and get brighter. I reset all the circuit breakers and cycled the master several more times and it finally stayed off. Battery indicates 12.6 volts. Any suggestions as to cause? Master solenoid?
    Pete Dougherty
    R & D Shop Manager
    Cub Crafters Inc

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