Shut the door and try to lock it.
How to fix my front door lock.
Inspect the strike plate on the edge of the door frame.
If it is loose or has slipped out of the mortise place it back in the mortise and tighten the screws with a phillips screwdriver.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
Equip a rotary tool with a carbide tip bit.
If the weather is very cold don t discount the possibility that the lock might have frozen.
The basics of how to fix a door lock that is jammed in this way comes down to heat.
You can heat your key or use a blow dryer to thaw the door lock.
Using gloves dry the key and insert it slowly into the lock.
In some cases you will have to use a de icer on your locks to resolve the problem.
A latch bolt that sticks in the strike often leave tell tale marks or scrapes on the.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
Open the door wide and put on a pair of safety glasses to protect your eyes.
3 if this does not help remove the knob.
The best way to thaw out a lock is to insert a heated key into it.
Watch this video and l w.
1 loosen the setscrew on the knob s shank.