This past weekend we were camping and while I was away my wife accidentally turned on the LP switch fir the hot water heater. I had already turned on the electric switch since we were using shore power. The hot water worked fine all weekend but this morning as I was packing up I noticed the soot marks on the the outer grill and just above the hot water heater.
Would this have happened because I had both sources on? It appears that there is no damage to the side of the camper or to the hot water heater itself. Any ideas would be greatly appreciated.
2018 Jayco 30.5 MBOK
2017 Chevrolet 2500 HD Duramax.