This might not apply to yours, but worth a try.
8 years ago, my bathroom fan slows down to stand still.
I open it up and pump lots of WD-40 in and use stick to help it moves.
Once it moves, it moves like a beauty.
8 Years later, it still running.
=>My bathroom fan has gotten really noisy! I think it's over 10 years old. Is
=>there anyway to repair it, or would it be better to buy a new one? Also, it
=>is a round unit with a light in the middle- do they come in standard sizes
=>so I won't have to cut out a new opening or change the opening for the fan?
=>If I wanted a rectangular one, is there a way to patch the ceiling
=>wallboard? Thanks for any advice. Sis