Hi all. I have a 2016 Haibike Sduro (Yamaha) that doesn't switch on when you press the power button on the controller. It was working fine last Sunday. Since then I've given it a clean, lube and charged the battery. Now it's doing nothing. The display has power (showing the time), and I've tried a spare display, but that makes no difference. I've dropped the motor out and checked all of the contacts, and that there is power going from the battery to the motor. Any suggestions would be appreciated. Gutted not to be getting out on it today!