Have RV Questions? Ask an RV Mechanic Online.
I think this model may not have an automatic transfer switch and you have to plug the shore cord into the outlet in that compartment in order to have power inside the coach. IF NOT, then be sure that both breakers (if that set has two) are not tripped. Otherwise, there isn't any good reason for it running on shore power and not on genset. Be sure that the genset is putting out the correct AC voltage. Use a small digital multimeter for that. Hope this proves helpful here. Please get back to me if you need more on this as all follow ups are included in our fee.