Turning over & running engine while plugged in
I have a few Newbie questions related to my 1989 340LE; this is one of them.
Is it safe to start the motorhome (ie turn on and run the engine, in park) while plugged in to 120V AC?
So for instance I have an extension cord to the Airstream to power the fridge, lights, etc but wish to turn on the engine every once in a while to maintain over the winter but is it better to unplug when doing this? or is it perfectly fine to keep plugged in when starting and turning off the engine.
Any insight would be very much appreciated, thanks in advance!