If that is the problem it is easy to fix.
House back door wont lock.
Flip the key and open the door.
Most interior door knobs are relatively inexpensive to replace.
Firmly push the plane toward the center of the door to shave off a small amount of wood.
Hot warm weather upvc door lock won t lock or close.
Spray the door key with a graphite based lubricant.
Outdoor locks can collect a lot of dirt and dust inside the lock cylinder.
To be unable to lock a door in a dream can suggest that you are trying to hide from problems in life.
Cold weather upvc door lock won t lock or shut properly.
Set it back.
An improperly functioning latch may be the result of a poorly fitting door.
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You can spray a little dry lubricant in the lock to free up the plug so you can open the door.
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Slide the key in the lock and tap lightly on the key to lubricate the inside of the lock.
Cold and freezing weather will cause a upvc door to not lock or close properly this is due to contraction of the upvc the shrinking can only be 1mm o r 2mm but is enough to stop your door from locking.
If the door does not allow the lock to be jimmied open it may be necessary to remove the door from its hinges.
That can cause the pins to get stuck in a partially raised position and prevent the plug from turning.
Take the door off the hinges.
Faulty lock the internal mechanism could be broken.
Tap the end of a chisel under the door stop on the striker side of the jamb.
The bolt on the door would not go across in a dream.
Place a block plane on the outside edge of the door nearest to where you marked the problem area.
Key is hard to turn or won t go in the lock don t force the key.
Shut the door and try to lock it.
For serious lock problems it is usually best to call a locksmith or to replace the lock entirely.
After each pass hang the door on the hinges and close it to test the fit.
It s possible that there is an issue with the lock cylinder.
It doesn t really pay to have interior door knobs or locks professionally repaired unless they are special.
How to fix a door that won t close because of settling by heath robert.
Debris or ice from cold weather may be causing problems with the cylinder or you might simply be using the wrong key.
If it won t lock open the door.
Insert a long sturdy item with a flat tip preferably a flat head screwdriver if available between the top rung of the door s top hinge and the head of the bolt securing the door to the hinge.
Place the door stop back on the jamb.