[RGordon]

I have the same rig as you with the built-in Onan 5500 generator. You need to open the front cover of the generator and look up the top left corner and see if the 20 and 30 amp breakers are on. This will keep any voltage from going to your breaker panel inside. The 5500 will run everything in that rig and I also went to a Samsung french door residential fridge. Best thing I ever done.