A flashing letter "E" or "F" on the display screen of a Levy Plus scooter indicates connection issues between the battery and the scooter. The most common cause of this is error code is the battery being inserted into the scooter incorrectly. There will always be a 'clicking' sound when the battery is inserted properly into the Levy Plus. The following link goes further in depth: Removing / Inserting the battery on the Levy Plus.
If the battery is clicked in properly and the error code is still occurring, then this connection issue may be caused by damage on either the connector pins of the motor controller or the connection point on the battery itself. If you believe this to be the case, please use the support form on our website to reach out to our team for help.