Norcold Control Module/ Power Board 640178 / 50907fits the N8DC/ 10DC/ N15DC/ N2152/ N2090/ N2175/ N20DC Fits these Norcold refrigerator models: N15DC series (15 cu. ft.): N15DCSS, N15DCMB, N15DCIMSS, N15DCIMMB N20DC series (19 cu. ft.): N20DCSS, N20DCMB, N20DCIMSS, N20DCIMMB N8DC series: N8DCS... See More