When the auto mode is set with the symbols- plug white and flam dark does the Norcold 2118 run on LP? If the LP tank run empty, will the electricity take over and run the unit. The Norcold manual states that it will run on the most efficient energy source. I do not understand the efficient term. The 2118 would not stop beeping until I refilled the LP tanks, even though I switched the mode to electric. It would flash a code no AC. With the LP tanks filled and switched to the door side LP tank, the beeping stopped. The 2118 never stopped running during this whole episode, so it had to be running on electric.

Also, I cannot find the GFI outlet. The only place I could not see was where the stackable dryer and washer are located in the front bedroom closet in my Solitude 373 F.

Thanks for your help!