My lock has an audible alarm after I input the PIN code. Blair April 10, 2019 20:45 Updated Please check if anything is blocking the bolt. If not, please contact Alfred at firstname.lastname@example.org for further assistance. Related articles Why is Alfred failing to lock? Why does my lock alarm after unlocking with the thumb turn? The thumb turn does not work. Handing Switch What happens if I cannot find my lock on the Alfred app? Comments 0 comments Please sign in to leave a comment.