Hello, ide imagine a board burn out if you got stuck, the z10 has a direct charge system that dosent go via the controll boards. Ide take the side panel off and look inside, make sure to disconnect the (2) battery connectors in the right hand side of the wheel. Before accesing the boards on the left hand side of the wheel. Ive done quite a bit of work fixing my z10 so happy to try and help where i can