The first thing you can try for opening a jammed latch is to slide a plastic card e g.
How to open a jammed door lock from the outside.
Take the handles knobs off of the door.
If this lock is on an exterior door just be sure that any other of your locks are open before addressing the door knob that turns but won t open.
Make one or two passes and test the latch to see how it catches.
Letting the components sit fully submerged in a vinegar of about 5 acidity will do the job of separating the gunk from your metal.
Slide in the card forcefully and play with it a bit while shaking the door a bit too at the same time.
To fix the door knob figure out where the connections have gone awry.
Using a 4 hole saw make a hand opening just above other outside door to garage just above or below the lock set.
Using a bump key 1 bump open a tumbler lock.
Make a hook at the end of a second pin to create a tension lever.
Widen the slot on the inside of the strike plate if your lock has become stubborn.
The next most common reason you re stuck outside your rv is that the door or lock itself if jammed.
This will hopefully force back the latch and the door will open.
Bumping a lock is a quick simple lock picking technique that is useful in the case of having to open a door that s been closed for a long time for example of an unused home on family property or if you need to break into an elderly relative s house to make sure they re okay.
Remove the handles including the thru spindle.
Glue plug back in place and then cover entire lockset area with sheet metal at least 6 inches from edge of door both inside and out.
Insert that end into the keyhole then bend the pin so it s flush against the outside of the lock.
A credit card between the door and the frame where the latch is located.
Shave off a small amount of metal around the rim.
The fix in instances with a door latch stuck because it is jammed by rust and other materials it is always best to disassemble the lock and do a bit of cleaning.
So the key works but the door and lock don t seem to be functioning correctly.
Open up the bobby pin so it bends at a 90 angle and shave off the rubber tip on the straight end with a knife or razor.