Last week I had my Hover WindTunnel Max Multi-Cyclonic (Model # UH70601) vacuuming carpet on the bar floor setting. It started making a thwapping noise and smells like burned rubber when vacuuming with the brushroll on.
I opened up the bottom of the vacuum. When I remove the belt the vacuum doesn't make the noise. Looking at the belt and what is holding it in I don't understand why it is making the noise.