Replace the doorknob if the assembly is broken.
How to unstick a door handle.
Pry the cap off.
If it s a matter of friction on the strike plate try.
Inspect the doorknob assembly more closely.
This should reduce the friction and allow the door to close more smoothly.
The knob will not turn to retract the stuck door latch.
On newer doors you need to remove the screws from the face plate or the circular plate around the door knob.
Remove the screws from the plate and remove the doorknob from the door.
Use the flat head screwdriver to gently pry the plate from the door.
Troubleshooting a stuck door latch.
Close the door and look at the hinges.
If the sticking area is along the door frame where the hinges are located.
How to fix a sticking door handle 1.
The door latch is not extended before rotating the knob.
Remove any obstructions from the assembly with needle nose pliers.
Try to open the door while it is shut.
Of course this is a gentle and temporary solution and will need to be repeated sporadically during times of humidity.
Once the screws are removed you can take off the door knob by pulling it straight off the post.
Using the handle of his screwdriver tom taps each pin home and then gives the door a test swing.
Use a dry moisturizer free soap that leaves a powdery residue on the sides of the door.
Now precisely where on this part of the door frame does the sticking occur.
You can grip the other door knob and pull to remove the entire assembly.
Rub the problem area with bar soap.
If door hinge screws look like they are poking out screw or tap them back in.
Determine where the sticking is happening.
Open the door and look for obstructions in the door lock plate like loose screws.
Take note of the type of resistance.
Look inside the doorknob for obstructions or breaks in the mechanism.
The latch will not retract even when the knob is turned.
Then he hoists the door back into its opening lining up the knuckles and dropping in the pins first top then bottom.