Staff Answer
Sep 28, 2026 - 06:16 AM
The upgraded N811V optical board (636388) is discontinued now, so that upgrade isn't available anymore. It used the standard 636658 thermistor. If the thermistor has been replaced and it still freezes everything, the board is the likely cause, and the Norcold N8X is the replacement fridge for the N811V.
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.
