I’ve noticed a persistent mildew smell in my bedroom for the past few months. It’s a very clean mildew smell though (more like a well maintained locker room than a moldy basement). I have an en-suite bathroom and have also noticed small spots of mold starting to form on the ceiling around the shower. I suspect my bathroom fan needs to be replaced, and that steam from the shower is the cause of the smell. The fan sounds like it’s working, but when I put my hands near it, it doesn’t seem to be sucking in air.
Is a poorly functioning fan the likely cause of the smell? If I replace it and clean the mold, will that be sufficient? What else needs to be done, and do I need to bring in a contractor to do it?