Step 1 if the key turns but does not operate the lock bolt the lock mechanism is broken.
Rock door lock problems.
Also a broken bolt or latch that causes your door lock to jam might be a symptom of a much larger issue like an attempted home break in.
Repairs range from making minor latch adjustments to repositioning the door.
Door lock problems are mostly mechanism issues and sometimes they become faulty through wear.
If the latch does not catch close the door slowly to watch how the latch bolt meets the strike plate.
Tighten the hinge screws and then try adjusting the strike plate by loosening its screws and shifting it slightly.
Those related to the lock set or key and those related to the door s frame and latch assembly.
If a door is sagging the lock will not latch correctly.
Faulty mechanism mechanisms on composite doors are.
Door hardware only works properly on a door that is aligned the way it should be.
These difficulties fall into two general categories.
Like a medical problem this is what we call a symtom.
Faulty euro cylinder the door furniture and hardware on a composite door is practically identical to a upvc door so.
Excessive use or not using it often believe it or not may cause these mechanisms to become defective or stuck.
Remove the mechanism to have it repaired or replace the lock set yourself.
Warped door it is a rare occurrence but composite doors can sometimes warp.