The fridge worked fine on "high" on shore power for 12 hours, then started cycling on and off (you could hear the compressor kick for a few seconds, then "off") when I turned the temp knob to the halfway position. I turned it back up again and the compressor turned on and stayed on. I placed it back to the halfway position and then we went to DC power once we were underway. We checked it every couple hours and noticed the temp was coming up. I couldn't hear the compressor, but am not sure it was off or on due to the power plant noise. I verified the DC Refer switch was on, but didn't troubleshoot any further. Around the evening we were plugged in again, and it was working without the cycling I mentioned earlier, so I swapped over to DC. After an hour, I verified the fridge was still working in that mode (the freezer plate was cold), and then placed it back to AC power. The next day it was dead, other than a few pathetic attempts to kick on, then off. I'll have a refrigerator tech check it out in a couple weeks, and can survive on coolers for the time being. I started pricing similar capacity units on the off chance the repair isn't economical, but don't see anything for cheaper than a grand or so. OUCH.