I am also having this same issue.  No PAS or throttle.  Battery charged cables unplugged and re-plugged, unplugged the brackes and same result.  Removed the plug for the battery, plugged in the battery and tried it again and the controller LED(on the controller) comes on solid and when I try the throttle it flashes 1 the 8 flashes.  Does anyone know what this means?  I to can't get a hold of Rad Support!  Frustrating
Thanks
Tom