If your Roadster isn’t turning on, there may be a few reasons this is happening.  Please try the following: Press and hold the POWER button (Button 1) on the control switch for 3 seconds. If no response, check to ensure the Battery Pack is completely inserted into the Roadster correctly.  This can be done by visually inspecting the battery alignment dots on the battery & frame. Check to see if the battery is holding a charge. To do this, plug the charger into the battery while it remains in the Roadster and turn the charger on at the wall. If the LED on the charge goes RED, the battery is charging. Leave plugged in until the LED turns GREEN If the battery is full and is correctly inserted into the Roadster, repeat Step 1. If the Roadster is still unresponsive, please contact Tiller or a Tiller Authorised Service Technician.