nothing on shore power
means you have a transfer switch problem
this is a box with one or two relays (one for 30amp rv, two for 50amp RV)
that automatically switches between shore power and generator
depending on how your RV outlets are configured aka wire in the breaker panel
they might be all on one line from the generator and not getting any power because of the bad transfer switch
find the transfer switch box and rap on it with your palm, slap it good if the contacts in the relay are stuck they might unstick
otherwise
you need to see an RV electrician
