Staff Answer
Sep 28, 2026 - 07:27 AM
With serial 644061, your N821 takes the 637779 kit (for serials below 9126825), not the 628661. That kit is discontinued now. If your boards have failed, the Norcold N8X is the replacement fridge.
If you have any questions, just reach out at info@rvfridgeguys.com or call us at 800-712-8822. You can find everything we carry at www.rvfridgeguys.com.
