Try to open the door while it is shut.
Stuck lock on door.
Fortunately there are a number of ways to fix a stuck lock without calling in the professionals and breaking your budget.
Insert the straw into the opening of the lock.
The latch will not retract even when the knob is turned.
Locate the screws holding the lock in place on the inside of the door.
Remove the cover or faceplate of your mortise lock or surface mounted rim lock to repair it.
The knob will not turn to retract the stuck door latch.
Remove the old lock.
A sticky lock is usually caused when excess dirt and grime binds up the mechanisms that enable the lock to turn smoothly.
If the malfunctioning lock is in the door handle there will be at least two screws securing the door handle to the door.
Push and hold the button in.
Place the end of the straw into the opening of the lock where you normally insert your key.
Guide the straw as far in as you can to make sure you re hitting every part of the locking mechanism that might be sticking with the wd 40.
Once that happens getting in and out of doors can be a major hassle.
Release the button quickly try sliding your finger off the button so the pressure is maintained up until the precise moment of release with no backing off.
Troubleshooting a stuck door latch.
More force is needed to turn the knob and unstick the latch.
The door latch is not extended before rotating the knob.
Remove these screws unscrew one side of the door knob and pull the door handle and lock assembly out of the door.
Start by trying to push the lock button.