Staff Answer
Sep 27, 2026 - 10:39 AM
Running flat out with no codes usually means the thermistor is telling the board it's warm when it isn't. That's a failing thermistor, a bad connection (you already found one), or a thermistor that's slipped off the fins. Make sure it's clipped to the right fin (on most N6/N8 models, that's the 10th from the right). If it still runs cold, the 636658 thermistor fits the N621 and is in stock.
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.
