Staff Answer
Sep 25, 2026 - 08:32 AM
Since you've already replaced the main board and the temp switch, and the power button responds randomly, the Optical Display Board 637081 is a good bet. Before you buy it, reseat and inspect the ribbon cable between the boards, since a bad cable can cause the same random behavior. The 637081 has been discontinued by Norcold, so it's only available while our remaining stock lasts. The 2118 is discontinued too, and Norcold's replacement is the Norcold N20DCSS. See our Norcold replacement guide.
Since I can't confirm this 100% from here, please email us at info@rvfridgeguys.com or call 800-712-8822 with your model and serial number and we'll double-check it for you. You can also browse www.rvfridgeguys.com.
