If you have no power at the switch, I'm wondering if the fuse is blown. It is not uncommon for someone to put the wrong bulb(s) in the sockets. I don't recall the bulb numbers, but the correct bulb has two terminals on the bottom. If you put one in that just has one terminal it will short across the two socket terminals and blow the fuse. I can get more info, but suspect other responders will supply it.