"Coach Cleats".....On the Monaco products, that water heater light just burns out. You can often find just the replacement light, usually it's a separate indicator.
The generator switch has been known to have issues caused by a dirty connection. Your remote switch, on your dash, is connected by a small wiring loom to the generator. You need to look at the wires running into the generator and clean the connectors. Often it's easiest to slide your generator out, crawl under the coach and you can sit up behind the generator (there will be a large area where it slid out from) and clean the connectors at the rear of the generator.