Hi,

The bathroom fan in our rental is a Lutron FS-F5 Rotary Fan Speed Control. This switch wasn't turning on the fan. The landlord had someone come in an do something and it worked for a week then stopped. I plugged the fan into an extension cord to test and it's fine. I replaced this fan control with a single pole on/off switch and no go. Oddly, there's two red wires hooked to the switch, but because of the paint spray on all the wires I can't really trace the source(s). Any clue why the switch is tempermental or why the wiring is as it is?