I will just leave it for now as I don't think ATM I need them. as I have now ordered a new controller from Erider, not cheap either, But I have checked everything else done voltage tests thanks to Nealh help. so cant think what else it can be why wheel wont turn. it has been running, But had to remove old throttle as was faulty, I have never seen so many joins in the lead. I do personally think it is the controller. as I was driving along one day when all of a sudden speed dropped. and the wheel wouldn't turn after twisting the throttle grip, But if I opened throttle fully, then moved back wheel all was fine. but it should also go after opening throttle. so fingers crossed it is the controller. as Ive also checked wiring to back wheel from controller