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