1 loosen the setscrew on the knob s shank.
Front door wont lock easily.
You may want to call on a local installer to do this if you are unsure.
3 if this does not help remove the knob.
If a dry lubricant doesn t do the trick you can try wd 40.
Locate the two screws that hold the door knob together and tighten them.
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As the last trade has said the door probably needs re packing.
Flip the key and open the door.
Once the key pieces have been extracted the door lock should be examined.
If that is the problem it is easy to fix.
Cold weather upvc door lock won t lock or shut properly.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
Hot warm weather upvc door lock won t lock or close.
Spray lubricant in the keyway and insert the key a few times so the lubricant can get worked into the mechanism.
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Test it with a spare key and make sure that.
When you use your door a lot you will begin to notice a little bit of play in the door knob.
If not do the lipstick test smear lipstick on the latch and stick masking tape to the strike plate.
Check the draft.
Sometimes you can clearly see the misalignment.
Spray the door key with a graphite based lubricant.
This will keep the door knob from moving around and secure to the door.
Answered 23rd oct 2013.
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.
The complete lockset including the doorknob.
If your doorknob mechanism fails internally you can t repair it.
If your door is badly warped it may not seal properly even when you move the door jamb.
You can spray a little dry lubricant in the lock to free up the plug so you can open the door.
First you will need to work on removing the broken key pieces from within the keyway of your door lock.
This problem is easily fixed with a screwdriver.
Slide the key in the lock and tap lightly on the key to lubricate the inside of the lock.
Here are the basic steps on how to fix this problem.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
Don t use a wet.