Norcold Control Module/ Power Board 640178 / 50907fits the N8DC/ 10DC/ N15DC/ N2152/ N2090/ N2175/ N20DC This is the control board in the back of the following Norcold models, regardless of serial number: N8DC N8DCSS N10DC N10DCSS N15DCSS N2152 N2090 N2175 This is also the control board that fi... See More