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Error code 4

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    Error code 4

    I finally have everything put together on my BBS02 , turned the power on last night and the display came on for a few seconds and went off. There is an ER 4. I have seen a few things it could be such as high throttle. I am not sure what that is and how to fix it. Any suggestions?

    Hi Medicpg,

    And welcome to the forum!

    I think Error 4 is where the controller is getting more than the minimum acceptable throttle voltage output on start up. And will lock out the controller for safety reasons. Check to make sure the throttle is in the full off position and not stuck partially on. See what you get with the throttle unplugged.
    See my completed Magic Pie V5 rear hub motor E-Bike build HERE.