Is it possible to replace a ceiling fan speed controller with a switch? I just bought a house that had a ceiling fan with no light, which used a fan speed controller on the wall with different speeds. I added a light to the ceiling fan and would like to replace the fan controller with a light switch, that will turn both the light and the fan on. You would have to control each with the chains that hang from the fan. I replaced the fan controller with a light switch and it didn't work. Does it need to be connected differently? I only connected the 2 black wires and the ground. It is a one pole switch.