Replace your refrigerator's damaged or broken circuit board with Norcold 691449 Power Supply Circuit Board. This Power Supply Circuit Board is only compatible with the N3150 and N3104 models with a serial number between the following ranges: E001N - E366N; E001P - E365P; E001R - E365R or E001S - E058S. Refer to manufacturer recommendations to ensure a proper fit. Quick and easy installation.