The LED on your engine may flash in different colors to give you some information.
ORANGE: Recharge your battery.
RED: Critical battery operating threshold or configuration error.
RED WHITE alternately flashing: Access is denied. The code / badge is not correct or does not have access to this time range or date. This code can also correspond to an attempt to lock with the door open.
WHITE rapid flashing: Pairing mode (with a reader or badge or code)
WHITE slow flashing: lock locked
GREEN: Installation or adjustment of limit switches.