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Good morning. I'm new, both at owning an RV and to this forum. I'm quickly learning that I don't know anything! I guess owning a motor home will do that to you. i just acquired a 1983 New Horizon 20 ft motor coach. I was sitting at the dinette yesterday afternoon when I heard a "pop", much like a circuit breaker tripping. I'm plugged in to shore power so I checked the panel and cycled all the cb's and everything appeared ok. However, last night, my fourth night in her, I discovered all the 12v lights, including the range hood fan/light, were out. The battery charge indicator shows way up in the green. I started up the engine, then checked all the exterior lights, which functioned normally, so the problem seems isolated to the 12v circuit in the house. This morning I found the fuse panel, hidden within the cb panel, and all of the fuses are good, so I'm stymied! Is there another fuse panel in the New Horizon coach? Yesterday was the first day I'd hooked up to shore power; could the electrical converter/charger/fuse and circuit breaker panel somehow be having a problem with the 110v, or is that a non-related issue? (I can see how this could possibly be a very complex electrical issue, due to the multiple interactive systems, but I would prefer to get my lights working first before tearing out all the wiring and starting from scratch!) Any suggestions or answers would certainly be greatly appreciated! Thank you. : )