I need to replace the power board in my 1999 four winds rv norcold refrig. Model N621

Staff Answer

Sep 28, 2026 - 06:28 AM

With serial 629197, your N621 is below 9126825, which takes the 637779 board kit. That kit is discontinued now. If the board has failed, the Norcold N7X is the replacement fridge for the N621.

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.

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I need to replace the power board in my 1999 four winds rv norcold refrig. Model N621 - SN 629197FK. what need?

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