S&G mechanical combination dial normally spins very easily. All of a sudden it became hard to turn. Looks like something is dragging on the spin/opening handle. Anybody ever have this happen before and know how to correct? Seems like something came loose. Just happened a few minutes ago was working fine earlier this afternoon. Assuming the mechanical stuff will be exposed if I take back carpet/rails off door but there are a lot of snap caps and don't feel like dealing with this tonight.