[JRTJH]

On initial startup it will take about an hour or more before you'll even feel any "coolness" on the freezer floor. It will take 4 or 5 hours to "know for sure" that it's cooling, and that will be in the freezer section. It will take several additional hours before you'll notice a significant drop in refrigerator section temperatures.

My guess is that you have the same "control board" problems that have plagued Attwood's H2 refrigerators since they came onto the market. I wouldn't recommend replacing the control board as a "troubleshooting measure" but after a technician confirms the problem, I'd suspect that's what he will tell you is wrong with your refrigerator.