I have a pair of OVER/UNDER refrigerators SUBZERO 700BR and for the life of me i cant figure out what is going on. They were working 100% fine and one day it just.... turn itself off... the display on the top shelf says OFF in the LCD panel. I have looked high and low and i cant figure out how to turn it back on... pleaseeeeeeeeeee help me. thanks!!

Refrigerators - Sub-Zero - 632 / S