I have a 1988 Georgie Boy Cruise Air II and lately I'm getting a repeated clicking from the area where my Battery Isolater and Ignition Accessory Isolater are located when I turn the ignition key. I loose power to my electric step and my furnace. I don't know what else might have lost power. I didn't get any manual or info about the Isolators. Can anyone point me in a direction or web site to get some info or diagram on this?