My wife informed me last night that everything in the freezer section of our kitchen refrigerator was thawing out. I took the panels off, vacuumed all the crud off the coils, made sure the compressor was running, and checked it this morning. Everything was more thawed. Stuck one of the Govees from a humidor in the fridge, got myself all cleaned up, and checked the temp: 56.1.

Moved everything into the basement fridge and freezer, unplugged the upstairs one, and called the appliance folks. They'll try to get to it today, but it may be Monday.