Eric,
Airstream sold at least two more 16 footers
Seriously, there are more 16' owners on this forum. They probably have not gotten out of bed yet.
I'm a 19 footer, so I'd be useless, except to say that when we boondock in temps any warmer than 60 degrees, our fridge fan runs constantly.
I seem to recall that the newer units had a cut off switch for the fan. I also vaguely remember that the fan allows the fridge to cool another few degrees.
Sit tight. Someone will answer.
Best wishes.
Jonathan