Staff Answer
Sep 28, 2026 - 06:32 AM
It could be. "no Co" means the fridge isn't getting cold enough, and the board judges that from the thermistor. On a 1200, the thermistor should be clipped to the 2nd fin from the right. If it's loose or reading wrong, replace it with the 636658 thermistor. If a good thermistor doesn't fix it, the cooling unit is likely getting weak.
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.
