Patio door lock

Question

Our old piece jams up. The top piece is loose and falls down on its own. I purchased a new piece from Amazon. It doesn't seem to work. Does it have to do with the added jam button?It appears it's not on our old piece, but this new piece has it.

Bob · Accepted Answer

Thanks for posting. This looks like our 82-265 Mortise Lock. Please compare. For a new keeper, see the 82-249.

Alternate image for 82-265