A faulty mechanism
A faulty mechanism
If your door lock is old, you may need help locking or unlocking it due to wear and tear or a lack of real maintenance. It may be necessary to purchase a new door lock because door locks are intricate devices that can break down over time. A broken lock mechanism may be fixable by someone with mechanical aptitude, but even someone with professional training may find it difficult to handle due to the intricate inner workings.