Forum Discussion

kmb1966's avatar
kmb1966
Explorer
Jan 13, 2020

Norcold 1200 - Thermistor temps wrong until power cycled

I am troubleshooting an ongoing problem with my Norcold 1200. It cools fine for a few days and then suddenly will stop cooling. Putting the Norcold in diagnostic mode, the thermistor reading will sho...
dougrainer's avatar
dougrainer
Nomad
Jan 13, 2020
Replace the Rear Control board. Remember the Thermister reading in diag mode is the FIN temp. The actual refer temp will be 10 degrees warmer. Also, a Defective Thermister will test(Ohm) out correctly. But, since you have replaced it, go with the control board. Are you positive the 4 wire quick connect by the interior light has good solid pin connections for the 2 wires to the Thermister? Doug

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