In this case you may have difficulty inserting or removing the key.
How to fix a glass door lock.
Remove the new door lock from its packaging and become familiar with all of the parts and pieces.
Unfortunately with these types it is fairly common for debris to get inside and jam the mechanism.
In either case these problems can be simply amended using a graphite pen from any hardware store.
Normally a glass sliding door will have a standard pin tumbler variety that can be found in any regular door.
Simply insert the pen into the lock and squeeze a small amount of the substance into the lock.
Within seconds your lock should feel like new.
How to fix a glass sliding patio door that dosnt roll close or lock properly.
The wheels on the glass sliding patio door have an adjustment screw at the bot.
Install the locking.