To us, in our 2011 3510RL, the furnace has a louder whine that after a period of time seems very loud to us (especially at night when asleep). I'm posting a link to a short video I made to record the sound of our furnace. We'd like to know if it sounds similar to everyone else's Montana. Not the blower noise in general, but the whine that is present. I figured I would ask opinions before I went through replacing the motor and possibly not have any improvement in the sound.
Furnace recording
Thanks!