How did you check pedestal? Did you reset pedestal circuit breakers, by moving the handle to off with slight pressure then turning back on?
Did you reset all circuit breakers in 120 volt distribution panel. Turn on breakers applying light pressure toward off, then turn back on.
Was shore power cord disconnected when running the genset? If so the transfer switch could be stuck. Disconnect from shore power, restart genset, then shut it down, plug in shore power.
Blown fuse on transfer switch control circuit.
Is there any 120 volt items working in the rig? Micro wave? Air conditioner/