If the weather is very cold don t discount the possibility that the lock might have frozen.
How to fix my front door lock.
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.
The best way to thaw out a lock is to insert a heated key into it.
Inspect the strike plate on the edge of the door frame.
Shut the door and try to lock it.
3 if this does not help remove the knob.
Don t call the locksmith just yet.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
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.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
Watch this video and l w.
A latch bolt that sticks in the strike often leave tell tale marks or scrapes on the.
Equip a rotary tool with a carbide tip bit.
Open the door wide and put on a pair of safety glasses to protect your eyes.
1 loosen the setscrew on the knob s shank.
If it won t lock open the door.