Norcold 628974 Optical Control Assembly (FITS THE N621/ N821)

Norcold 628974 Optical Control Assembly (FITS THE N621/ N821) Norcold 628974 optical display Control board that fits the N621 and N821 model refrigerators that have a serial number above 9126825. If your Norcold refrigerator’s serial number is below 9126825, you need: Norcold Board Kit 637779