Batteries may need to be changed.
Round Keypad w/ Fingerprint Reader Port on the left, display screen to the right.
(1) 9 Volt batery located on the backside of the keypad.
To remove the keypad, push up and lift the keypad off two shoulder screws.
Use caution when removing the battery cap.
Use a writing pen to unplug the battery cap, do not use the wires to pull the cap off.