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.
How to fix my front door lock.
Warm the key by placing it on top of a radiator or in a bowl of hot water.
1 loosen the setscrew on the knob s shank.
Watch this video and l w.
A latch bolt that sticks in the strike often leave tell tale marks or scrapes on the.
Inspect the strike plate on the edge of the door frame.
The basics of how to fix a door lock that is jammed in this way comes down to heat.
3 if this does not help remove the knob.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
In some cases you will have to use a de icer on your locks to resolve the problem.
Shut the door and try to lock it.
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.
You can heat your key or use a blow dryer to thaw the door lock.
Open the door wide and put on a pair of safety glasses to protect your eyes.
Don t call the locksmith just yet.