Remove the cover or faceplate of your mortise lock or surface mounted rim lock to repair it.
Old door lock stuck.
The most common is that the oil inside the door knob lock is old and has seized causing the lock to catch.
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.
Remove these screws unscrew one side of the door knob and pull the door handle and lock assembly out of the door.
A simple solution i have used in the past comes in handy again.
1 loosen the setscrew on the knob s shank.
Another common cause is that the screws on the door knob are loose.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
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.
These are all problems you can repair yourself.
From fixing the alignment to lubricating the lock a little work gets your door back in order.
Find and remove the screws that attach the interior door knob to the door.
Pull the knob out from the door.
Insert the straw into the opening of the lock.
The door latch is stuck i can t shut the door step 1.
Letting the components sit fully submerged in a vinegar of about 5 acidity will do the job of separating the gunk from your metal.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
For some models you ll need to remove a few screws where the handle.
Locate the screws holding the lock in place on the inside of the door.
3 if this does not help remove the knob.
Remove the exterior door knob if necessary.
Place the end of the straw into the opening of the lock where you normally insert your key.
Deadbolt lock stuck in locked position if you have an older lock you might find that the bolt or internals have rusted into position or otherwise been gummed.
The key may be worn or damaged so it will not work in the cylinder.
Fixing the issue yourself can save you money and many of the issues are relatively quick and easy to handle.
If the malfunctioning lock is in the door handle there will be at least two screws securing the door handle to the door.
Remove the old lock.
A jammed door lock can happen for many reasons including weather and alignment problems.
This can cause a slight void inside the door knob lock which can also cause it to catch and get stuck.
