2009 winnebago access class c. the battery by pass switch by the entrance steps works when turns on (battery working), but when turn off to bypass the house batteries, the batteries stay on. when I took the switch out of the wall there was a square metal box. don't know how to test it or even if that is the problem. any ideas where to start? thanks! Chuck
Regards, Don My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
