Staff Answer
Sep 25, 2026 - 01:36 PM
If you have AC and DC to the lower power board but the control panel stays dark, check the fuses on the power board, the 12V polarity at the board, and the ribbon cable between the power board and the control panel. If those are good, one of the boards has likely failed. The Power Board 632168001 has been discontinued by Norcold. For the N621/N821, the in-stock options are the 628661 and Dinosaur 6212XX. See our won't turn on checklist. If your fridge is discontinued, our Norcold replacement guide shows the current replacement.
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.
