Staff Answer
Sep 25, 2026 - 07:55 AM
Norcold doesn't publish a resistance chart for the thermistor 640149 that we can share, so I can't give you exact values. It should read a steady resistance that goes down as it warms up, like when you hold it in your hand. An open or shorted reading means it's bad. See our N8DC/N10DC thermistor article.
Since I can't confirm this 100% from here, please email us at info@rvfridgeguys.com or call 800-712-8822 with your model and serial number and we'll double-check it for you. You can also browse www.rvfridgeguys.com.
