Norcold Thermistor Assembly 636658 (replaces the 620871)
This is the current thermistor for all Norcold 1200 models, the 1210, and N1095. "Thermistor" = thermostat. Any numbers or letters after the model numbers are not important for this part. The thermistor has a 4 prong connector that will snap into the light fixture located up at the light bracket. The other end clips to the 2nd fin from the right hand side.
Fits all:
- 1200 (all models)
- 1201 (all models)
- 1210 (all models)
- 1211 (all models)
- N1095 (all models)
Troubleshooting:
Potential issues a new thermistor can solve:
- Freezing everything in refrigerator compartment, regardless of temperature setting.
- Temperature setting having little to no effect on inside temperatures.
- No cooling at all.
- Insufficient cooling.
Tools Needed:
Your fingers
Install Time:
1 minute. 2 minutes if you haven't had your coffee yet.

18 Reviews
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Exactly the part I was looking for!
Thanks for the quick turnaround on my order. Had trouble locating this part at local RV dealers. You guys made getting the right part easy!
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Works Great
Thanks to the troubleshooting guide on this site, I was led to believe that my freezing problem was due to a bad thermistor. Now works like new.
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frozen food
my refrigerator was freezing everything in the lower compartment regardless of the setting that I had it on. the thermistor fixed the issue and was a simply fix. It connects to your light fixture.