Weird One: The heater fan in the bathroom stops working after one use.
I have a Nutone exhaust/heater/light fixture in the ceiling of my bathrooms. Last week, my wife used the heater (like she always does) after getting out of the shower. It worked fine. The next morning, we went to use it and nothing. So I ordered a new fan/heater assembly (the heater and exhaust fans are separate units with separate switches controlling them) but in the meantime I took the heater out of one of the other identical units in another bathroom. I worked once, no problem, the didn't work this morning. The new one came in, but I don't want to install it without figuring out why the previous two worked once, then not again. Also, neither died during use... they were fine. They just didn't work the next day.
Last note: they all plug into their own 110vac outlets within the fan unit. I plugged the exhaust fan into the heater outlet and it worked, so the outlet is fine. It's definitely the heater / fan assembly.
Thanks for any help!