Open the patio door very slightly and turn the lock.
Sorry door doesnt lock.
Replacing it may require removing the car door panel.
Repairs range from making minor latch adjustments to repositioning the door.
Tighten the hinge screws and then try adjusting the strike plate by loosening its screws and shifting it slightly.
It it doesn t check to be sure the door is properly aligned.
The most pressing will be when your deadbolt door lock is stuck in the open position because your deadbolt provides the real security.
Again if one door doesn t work but others do the problem could be with the door lock solenoid.
If it comes out watch to see whether it connects with the lock catch in the door frame.
A fuse is blown.
Replacing the fuse will correct the problem.
When a door latch doesn t click into position it usually means the latch and the strike plate are out of alignment.
If one door doesn t work but others do the problem could be a blown fuse.
Also a broken bolt or latch that causes your door lock to jam might be a symptom of a much larger issue like an attempted home break in.
With your door lock stuck in unlocked the position your home can be made vulnerable.
The solutions and severity of this issue will differ depending on what type of lock it is.
This is a cheap and easy fix.
Door locking problems almost always originate in the door latch not the locking mechanism.
How to fix a door that will not lock.
You might need to prop the door up and tighten its connection to the door frame.
The solenoid is bad.
Door lock problems that are a result of debris jamming up the keyway should not be ignored because they can potentially result in more problems like breaking a key in a lock.