I have upgraded my Archeer's X813 controller and display with a new KT36 controller and color LCD8H display. Installation seems to be going ok so far except with throttle or walk mode. When I try to test them with the new LCD8H display the motor runs but there is no wheel movement. I can hear the motor spinning internally but there is no wheel drive. Is this likely to be a programing issue with the new controller? If you can point me in the right direction it would be most helpful.