Safe access problems and technician help NYC

[bills]

Hi everyone, I've been dealing with a situation that turned out to be more confusing than I expected. I have a safe that I use occasionally, and recently it became harder to open even though nothing obvious changed. The code still works sometimes, but other times it just doesn't respond right away. I started wondering if it's something internal rather than just a user error. I also noticed that I don't really understand how these mechanisms behave over time. At this point I'm unsure whether to leave it as it is or try to figure it out before it stops working completely. Has anyone experienced something like this where the issue appears gradually?