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.
You can heat your key or use a blow dryer to thaw the door lock.
3 if this does not help remove the knob.
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.
1 loosen the setscrew on the knob s shank.
Warm the key by placing it on top of a radiator or in a bowl of hot water.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
If it won t lock open the door.
Inspect the strike plate on the edge of the door frame.
Open the door wide and put on a pair of safety glasses to protect your eyes.
Using gloves dry the key and insert it slowly into the lock.
Watch this video and l w.
Don t call the locksmith just yet.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
Shut the door and try to lock it.
A latch bolt that sticks in the strike often leave tell tale marks or scrapes on the.