Interesting posts. Thanks to all.
In a recent trip to New Mexico we boondocked three weeks. For a couple of days it rained and our solar was not as effective as normal. It works pretty well for us with just four or five hours direct exposure. In any event, I got the same default signal, checked the gas, checked the normal stuff...most of what I checked was mentioned in the posts above.
Lo and behold, my batteries were discharged but only to about 11.7%, which is still a significant discharge in percentage of 100% charge. Solution was simple. I started the chassis motor and ran it for a few minutes, got a quick shot on the coach batteries and fired up the genset. Ran it for an hour. No more problems with the refrigerator.
These newer refrigerators have their advantages.......and disadvantages. Personally, I think they are much more "picky" than they were a few years ago. Read your manual on leveling. I forgot what ours calls for, but it seems way to tight a spec for me. Our old Dometic in our 2007 Roadtrek would freeze up the refrig on a low setting when it was several degrees out of level.
The lesson for me: my refrig defaults at a battery drain of just a little under 12 volts, apparently.
By the way, my refrigerator is two way only. I do miss the DC setting on my old refrig.
Paul