Well, my poor luck continues. The servicing dealership (Jamatt RV, Poteau, OK) plugged in my trailer, turned on the fridge, and it worked for several days. It finally quit, so they have a new one on the way. Unfortunately there wasn't time to get it delivered and installed before we leave on vacation. I guess we'll do it the old fashioned way, with ice chests. At least it is only a week-long trip, and there is a Walmart within a mile of where we are staying most of the time. The service rep didn't seem to think low voltage had anything to do with the problem, just a faulty unit. I'm still pleased with them at Jamatt RV, but the 90 mile drive each way is annoying.