First off you re going to have to take the door handle off.
Front door lock jammed shut.
Door lock doesn t latch properly when a door latch doesn t click into position it usually means the latch and the strike plate are out of alignment.
If the latch assembly is working just fine but the door is still stuck try squirting a little bit of all purpose lubricant between the door and the frame.
Remove the cover or faceplate of your mortise lock or surface mounted rim lock to repair it.
See if this retracts the handle.
Remove the handles including the thru spindle.
Make sure the lock is unlocked before you do this.
The latch will not retract even when the knob is turned.
Use the screwdriver to push the opposite side of the doorknob from the door and latch.
Pull the spindle from the center of the latch if applicable.
Tighten the hinge screws and then try adjusting the strike plate by loosening its screws and shifting it slightly.
The latch will not retract even when the knob is turned.
Repairs range from making minor latch adjustments to repositioning the door.
To fix the door knob figure out where the connections have gone awry.
Troubleshooting a stuck door latch try to open the door while it is shut.
Wet lubricant tends to gum up the locks.
Take note of the type of resistance.
Use a tool a flathead screwdriver will work to twist within the gap the thru spindle inserts into.
Make sure that the lock is not frozen shut.
The knob will not turn to retract the stuck.
You can do this by using the phillips head screw driver to unscrew both screws on the door handle.
Take the handles knobs off of the door.
You should start by spraying the lubricant simply on the door key.
You can slide the key into the lock lightly so that the lubricant can get inside the lock properly.
If it is you will have to remove the doorknob assembly remove the hinges and wiggle the entire door out of its frame.
Soak your door lock in kerosene for 24 hours if it isn t attached to a door and has been rusted shut.
The mechanics of the lock have broken leaving the top section of the door completely.
If the door lock gets jammed first you should use graphite based lubricant rather than using wet lubricant.
Use a file to widen the hole on the strike or remove the strike with a screwdriver and reposition it on the jamb.