After normal locking/unlocking, 5 red flashes followed by the center LEDs remaining solid red
The four AA batteries in the lock interior are low and need to be replaced.
After normal locking/unlocking, 5 red flashes followed by the side LEDs remaining solid red
The fob battery is low and needs to be replaced
After normal locking/unlocking, 5 red flashes followed by the side LEDs alternating red flashes
The deadbolt has jammed. Check your door for alignment and make sure the latch bolt can operate smoothly.