Patrick K Posted August 6, 2022 Share Posted August 6, 2022 Can anyone help me understand why my coach only has 12 volt power when the engine is running. I checked the house batteries and they are charged. I’ve been reading about the infamous salesman switch going bad, but I have power on all four terminals of it. My 12 volt fuse block that is in the bedroom above in the cabinet has power to the fuses. I feel like it is a ground somewhere? Link to comment Share on other sites More sharing options...
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