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Old 05-17-2019, 12:24 PM   #51
chuckster57
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Quote:
Originally Posted by NH_Bulldog View Post
From the factory, mine was on the last fin to the right, about halfway up the fin. There is a sticker on the side of the fridge that points up for colder and down for warmer. I moved it to the second fin in because it was too cold, but that was without load. It is packed now for a weekend boondocking excursion, so I will see what it does over the weekend running off gas.

Dometic and Norcold have different placements for the thermistor.

Norcold doesnít have a sticker.

Iíll post a pic as soon. As I get a chance.
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Old 05-17-2019, 03:40 PM   #52
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Here is the email we got 12/15/2016
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ID:	21849

Clearly states thermistor should be on the 2nd fin from right 1/4 inch from top.
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Old 05-17-2019, 07:08 PM   #53
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1/4 okay mine was a little below 1/2. I tried it in the center, and the temp went up to 50 and I was set on 7. Good to know thanks.
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Old 05-17-2019, 07:55 PM   #54
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Quote:
Originally Posted by chuckster57 View Post
Here is the email we got 12/15/2016
Attachment 21849

Clearly states thermistor should be on the 2nd fin from right 1/4 inch from top.
The 2118 has a Thermistor and a electronic temperature control (1-9). Changing the number makes a difference. What is the purpose of the thermistor?

I normally run on 5, 6 tends to freeze things up in the refrigerator. Our unit is 1018 miles south, so I can't tell you the position of the thermistor.
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Old 05-17-2019, 08:07 PM   #55
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The thermister is the measuring device for temperature. It provides the feedback to the control board to activate either the gas flame or the electric heating element to boil the gas and cool the fridge.
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Old 05-17-2019, 08:21 PM   #56
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The thermister is the measuring device for temperature. It provides the feedback to the control board to activate either the gas flame or the electric heating element to boil the gas and cool the fridge.
So the electronic temperature control is a variable resister in series with the thermistor to influence the input signal to the control board, thus adjusting the temperature up or down.
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Old 05-19-2019, 07:03 AM   #57
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With themister on second fin 1/2 from top and unit set at 7. Found it to be at 45 this morning. Per info i moved it to 1/4” from top and see what it does. Day before yesterday, I tried it in the center of the fin, it rose to 50. I still think something is wrong with it. As it should not take 36 plus hours to cool an empty fridge to 36. Don’t trust dealer to check or repair, may call a mobile repair company as someone suggested. But would rather do it myself if I could find a Norcold service manual.
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Old 05-19-2019, 07:16 AM   #58
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If the thermistor is unplugged from the control board, I believe it "forces" the cooling unit into full cool. I know it works on Dometic and we use it sometimes to quick check them. Don't remember if you can do it on a Norcold without getting a fault code.
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Old 05-19-2019, 07:24 AM   #59
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I did find a resistance temp chart and checked the thermistor per the chart and it seems within specs
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