It sounds like there is power, I get a low hum, but the blades don't turn. The switch is on the back of the fan connected to the motor and does not work at any speed. Also, I cleaned the lint and dust out of the area thinking that was my problem. Do you think it's the switch? The fan is only a few years.

Dryers - Vornado - Standard&Full Size Air Circulator CR1-0076-06 Fan