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? The thumb turn does not work. Why does my lock alarm after unlocking with the thumb turn? Handing Switch What should I do if my lock does not respond? Comments 0 comments Please sign in to leave a comment.