I have a old ceiling fan that is controlled from a wall switch. The switch has 5 settings. The transformer in the switch need to be replaced however I can't find one here in Phoenix. Can someone tell where I can get a transformer or tell how this switch and fan is wire so I can replace the fan with a new ceiling fan?
Thank You

You can simply replace the transformer with a 3 speed ceiling fan wall switch available at any hardware store. Or replace the fan and replace the transformer with a regular toggle switch.