Don't know how I missed this until now. I do not have schematics for the house but, have experienced some of these types of issues. I would start by resetting breakers and then check fuses on the circuit board that handles a lot of your house issues.On my 2002 Islander it is located in the compartment where the batteries are located and is just above batteries next to the inverter. If you have a manual for your coach it should tell you where it is located and what each fuse is for. My name is Larry and I can reached at 614 264-8636 or e-mail me at
lebaumgardner@att.net. Put me on your list of Islander owners willing to ban together.