So the frig seems to be running or is it the cooling fan, all the time, no
matter how I set the the three way switch.  I am guessing this is what
caused the very expensive auxiliary battery to die.  Just replaced it.  I
know the refrigerator is not supposed to run on the aux battery even if
switched to 12V, only when the engine is running.  I don't want to ruin
this new fancy battery. I just went out to the garage to organize for a
long weekend away and it was running, not terribly cold in the frig, but a
little. Can't be much over 80 degrees in the garage. And it has not been
set on 12V yet this year. (Have not gotten out much).  Any ideas? Could the
fan just run even if no frig on?
Laura