Tap the end of a chisel under the door stop on the striker side of the jamb.
How to fix door lock misalignments.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
If it won t lock open the door.
Pry up on it until it comes loose and remove it.
Open and close the misaligned door to look for areas where it sticks or doesn t line up correctly.
If that doesn t solve the problem try this trick.
1 loosen the setscrew on the knob s shank.
3 if this does not help remove the knob.
Use the chisel to remove the door stop.
Remove one of the screws on the jamb side of the hinge and drive in a 3 in.
Loosen and remove the screws on the hinge on the opposite side of the door that is making contact with the doorstop.
If you find that the latch contacts the strike plate too high or too low make sure all the door s hinge screws are tight.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
Check where the latch on the door hits the strike plate on the frame.
Use a cordless drill or driver to remove the screws on the jamb not the door.
The family handyman suggests covering the.