Wow! That is one heck of maiden voyage. We will be taking ours this coming Friday. We got this rig in late April and have learned a lot about it just "camping" in the driveway. One such weekend we tired our "pizza and a movie" night and used the microwave for the first time. It got VERY hot cooking the pizza and in fact at one point tripped our shore line power source hooked up in the garage. I would be interested in knowing what actually started the flame in your unit.
Since we bought our unit used, we had time to notice there was no fire extinguisher installed. We paid for that installation item at our "last chance to make right" 30 day warranty with the dealer. Now I wonder why it was missing in the first place and the microwave looked never used... maybe the same thing happened in our unit (Mel. 29C) as did in yours, Arizonaeagle. I also wonder if there is an "incident report" for this stuff on line?
Do let us know any updates and I will do the same. Take care and so glad you all were safe and you did the right thing without a panic.
Kate, Lynn and James
2009 Melbourne 29C