The lock on a push button knob is meant strictly for household privacy.
Push locks in door sticks.
Fortunately most front door lock problems can be.
Just gently squeeze a very small amount of graphite powder into the keyhole and then use your key to slowly work the lubricant into the lock.
Spray the wd 40 into the lock.
The issue a door latch stuck due to a jamming latch will have no real variation between how the latch moves when it is pressed in or when the handle is turned both when the door is open and when it is shut.
Another way to do it is to coat your key with the graphite powder first and then simply insert it into the lock.
The first door knobs and levers that open three ways.
Push button door knobs are used throughout the home as a cheap way to lock interior doors.
This is because the issue is not with the door and not even with the control the knob has over the stuck latch.
Often they stick or break due to excessive pressure being placed on the door.
Press down on the button on the rear of the wd 40 canister to begin releasing the lubricant into the lock.
Don t be afraid to use a liberal amount of oil a sticky lock needs the attention.
When a push button door knob begins to fail it either needs greasing or complete replacement to fix.
Hold down the spray button until the wd 40 begins to overflow from the lock opening.