[rdunk]

Quote: " We did find that if you unplug the thermister the frig will drop to around 27 not sure how the freezer did, but not happy with the frig and will be contacting Dometic for input".
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On the basis of the above, that means the cooling unit is certainly working, which is a very very very good thing. Also, it shows that either the thermister is not attached properly to the fin, or the thermister is defective. This (a thermister problem) is something easy and cheap to fix.

If you haven't done it already, slide the thermister as high as it will go on the fin, and see what the temp does. Then, if that doesn't help, make sure the end of the thermister wire under the plastic is touching the fin. If that doesn't get the fridge to cool, it must be a bad thermister. It is one of those two things that resulted in our fridge to begin to cool properly.

Nope, not an expert, but, "been there and dun that", with Dometic, as many others here have!!

Good luck!