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I am attaching a link to the Service Manual for this. See page 22 on corrective actions for this fault code. Let me know the outcome and we can go from there. Print out a copy of this as there is a wealth of information in here. http://www.alpinecoachassociation.com/house/fridge%20service%20manual.pdf
Be sure it isn't just a dirty connection as that is the most common problem here. Clean those good and apply just the SMALLEST dab of diaelectric grease to the connection. These get moisture in them over time. I can get back to you as soon as I get to my computer and give you a parts breakdown if you need that.
Talk about lazy! They can look this up just as easy as I can. Get back to me with the Product Number and Serial number off the data tag on the inside of the fridge.
I am attaching a link to the exploded view of the parts. See the "Controls" page and parts #162 and #163. Did you unplug them and clean the contacts? That may be what is wrong. http://www.laurelhurstdistributors.com/parts/refrigerators/dometic/NDA1402_1.html
You should be able to test those as well. It might be a control board issue.
Let me check what I have at the shop and get back to you later this morning. I am in California and won't be there for about 2 hours.
I put in a call to Dometic Technical and the ohm reading on the thermisters should be 5500 give or take about 5% when put in ice water for 10 minutes. IF those check out good, then the board is suspect. On the pins for those plugs on the board you should get some resistance and if none the board is bad. Hope that proves helpful here. Did you get the part numbers off the diagram? Shop around as the price varies.
Did you ohm out the thermisters to be sure that is the problem. And they are separate parts. Be sure they are bad.....it would be odd that both would be at the same time. It might be the board is bad....did you test that?
Just checking back in to see if you were able to resolve this or do you still need some additional input from me?