On my Onan MQ 4000 I have to unplug from the pedestal and manually plug the 30A shore cable into an outlet in the MH when using the generator. I just reread the startup procedure for the generator in the manual for my MH.
When starting and stopping the generator, you must turn off all electrical appliances, roof a/c and microwave or any outlets currently in use.
There are zero references in the generator section of the manual about when to plug the shore cable into the outlet. Just like the instructions say, I turn off all 110v appliances - although I leave the fridge on AUTO. I then plug the shore cable into the outlet, go inside the MH to start the generator, then I wait a minute or so after it has started so it can settle down, and then I turn on my 110v appliances as needed.
That's it.
