If you have the brown flat plastic rockers....yes thy do go bad. CHEAP!! I have replaced those on several coaches with Carling switches like all our dash switches. The hole needs to be enlarged a bit in most cases, but worth the effort. Make a diagram of wiring, and pull out any slack, if they left you some, and use heavy clips to kep the wires from falling back into the wall. That would make for a very long day!!