Al
missed you both at the party. Sorry you had to go, it was great!
I believe that you have the same step as us, the SCS step? If so you might try a strong magnet on the two door switches. One is "in" but I forget which. These are the magnet switches in the door jamb at the bottom of the opening on the left facing in. Be sure that the switch is off. Ours stopped and it was bad contacts.