Staff Answer
Sep 26, 2026 - 07:37 AM
We don't list part 621-329. If it sits on top of the gas valve, it's likely the solenoid or a related valve part. If the fridge doesn't switch to gas when it needs to, check the spark/sense electrode, the burner and the board. See our propane guide. If your fridge is an N621/N821, the Board Kit 637779 has been discontinued by Norcold, and the in-stock 628661 is the current board.
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.
