There should be a stop on the top or bottom of the door that the doors hits to prevent the door from sliding to far.
Sliding door lock stuck closed.
In order for smooth and easy operation there is some slack that can potentially cause your door to come off the track.
Went back and forth with the assembly lock and unlock worked smoothly.
Passenger sliding door is stuck in lock position and won t open 2 years ago i replaced the lock actuator i pulled the inside trim off and with some force was able to unlock the door.
Difficult to advise you on how to handle the lock without seeing it.
In this video i attempt to open a patio door that has got stuck locked.
Sometimes the set screw holds a cover plate on take the cover plate off and then you can get at the screws underneath the cover plate.
Open close lock unlock then 2 days later it did it again.
Sometimes patio doors become hard to open even when the track is clean.
In addition to cleaning and lubricating sliding door tracks you want to lubricate the door lock.
Your sliding door operates on a track to open and close.
If possible post a photo of the lock.
If you can feel your door moving in a direction other than completely straight from left to right then your sticking door can be caused by a misalignment.
The mechanics of the lock have broken leaving the top section of the door completely.
The best way to lubricate any lock is to disassemble it and use an aerosol lubricant to flush away grime and coat the moving parts of the lock.