Just to confirm, everything on 110vac IS working and everything on 12vdc IS NOT working, correct? Do you have ceiling lights, do the awnings and awning lights work?
Fridge, microwave, TV, ceiling fan,
Ours has a large fuse on the back wall on the battery compartment.
It's about 1" x 1" and looks like a small black box. This may be the fuse you're looking for.
* Are you getting 110Vac into the converter AND 12Vdc out of the converter? It's in the breaker panel.
* Did you actually pull each 12v fuse out and check them with your meter on ohms?
Sometimes they will look ok, and can still be blown.
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