Vehicle: 2003 Holiday Rambler Ambassador. Last night we had a huge rain storm while parked at our RV park. Our lights went out and I thought we lost power, but the fan and printer were still on. We figured out that none of our lights work, nor the hot water heater or air conditioning. However, the outlets, TV, microwave, and fridge work. We have tried resetting everything and putting in new light bulbs, but nothing seems to be fixing the issue. Nothing is lit up on the power board. Any suggestions to fix this strange electrical problem?