2012 Expedition,  When shore power is plugged in I'm getting the following reading on the power control system monitor:  Power Source No Service.  I have used voltmeter and checked power to the outlet and it is working. I have looked at all the breakers in the RV as well as the breakers for the inverters.  The inverters are working, but must be turned on manually by pushing the set button.  I have tried resetting the inverters to no avail.  Looked at many fuses and they seem to be OK as well.  Generator works fine and registers on the power control system monitor.  I have tried running the engine, turning it off, unplugging and re-plugging in shore power, but still get the same reading.  All batteries are charged.

At my wits end; any suggestions would be appreciated. Thanks