Norcold Optical Display Board 628974 (fits the N621/ N821)
This is the optical display board that fits the N621 and N821 model refrigerators that have a serial number above 9126825. If your refrigerator's serial number is below 9126825, you need:
Norcold Board Kit 637779 (click)
1 Review
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fixed!
My refrigerator controls suddenly stopped working. The refrigerator would come on and run but I couldn't change the mode or temperature settings. Replaced the board and it fixed my issue. If you have a similar problem, it's probably the optical board rather than the rear power board.
