My 3-speed 4-wire fan switch (Well-Tec) initially would not change speeds. It was stuck permanently at High even though the pull wire appeared to be working. We bought a new 4-wire switch (Westinghouse), and replaced it. We carefully noted which wire corresponds to which input and hooked it up. Now, though the fan speeds change, it does not turn off. When we switch through the speeds it goes High -> Med -> Low -> Med -> High -> Med... Never to OFF.

Any Ideas?