Step 3 check the parts of the latch.
How to replace a sliding glass door latch.
Check to make sure whether the latch is already broken or if it can still be repaired.
Normally a glass sliding door.
Prime line s selection of replacement mortise locks for sliding glass doors.
On some sliding glass door locks the door handles have long screws that go right through the steel mortised lock and there is usually a actuating lever that slides into a rectangular hole in the lock.
Usually you buy just the mortised steel lock assembly that fits within the door and reuse the old handles and actuating lever.
Prime line products c 1225 sliding door handle mortise st.
How to change an old mortise lock handle patio door with new 2019 parts.
Step 4 install.
This simple diy trick may solve your issues.