Mortise lock is jamming
Thanks, Doug
Hello,
If the lock itself is broken in the locked position, unforutnately, there is no easy way to disengage it. You could try removing the inside handle and engaging the mortise with a slotted screwdriver to unlock it. If that doesn't work, you may need to have a local locksmith evaluate the door to determine the best way to remove the original lock.
As for confirming the correct replacement, you would need to confirm that the specifications below match your assembly once it is removed from the door since there is no standard hardware in the industry. If you notice any discrepancies, feel free to get back to us with photos of your mortise once you are able to remove it and we can go from there.