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We were running m/h for 5-6 days off aux. power only. Noticed interior lights dim. Could not start generator-off status board-batteries too weak. started vehicle. Batteries seemed to have charged completely(drove 8 hours straight.) Generator will start off status board switch now, but none of the interior lights, refrig, waterpump, etc. will work off aux. mode only. They do work fine when generator is on or plugged into shore. I've reset circuit breakers( they did not feel like they had been sprung) pulled and checked home fuses at both main panel and at home batteries. Nothing has been added to the system from the way we got it new 3 months ago. I feel like something needs to be reset, but I'm at a total loss where. Any advice, but especially that which solves my riddle, would be appreciated. Round trip to the nearest dealer is 150 miles (who I will call on Tuesday.)
Offhand, it sounds as if your transfer switch isn't making the connection between the 12 volt system and the coach batteries. With shore or genset power applied, the transfer switch is feeding converter 12 volt power to the 12 volt system. You should hear an audible "click" from the switch when you connect and disconnect from shore power. That is the sound of the transfer switch opening and closing the two sets of points.