Staff Answer
Sep 28, 2026 - 06:13 AM
Yes, it's a common failure, but it's often the rear power board, not the display. The display and interior light both need 12V from the power board. Check that you have 12V at the fridge and that the fuse on the rear board is good. On an N621 with a serial above 9126825, the 628661 power board is the power board, and it's in stock. The matching 628974 optical board is discontinued. Serials below 9126825 took the 637779 kit, also discontinued.
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.
