According to this
http://bryantrv.com/docs2/docs/norcoldnxseries.pdfAt 70F it should be 11.1-12.0 kOhms. Mine is 8.2 kOhms
At 51F it should be 15.5-16.5 kOhms. Mine is 12.7 kOhms
At 70F the little Dometic one is 3.4 kOhms.
So assuming mine is out by having lower R on the whole range, then instead of shutting off the heat at 25, mine would still have been way lower so it never shut off. The little Dometic one would be even lower in R so it didn't do any good.
Perhaps my jury rig should have used both thermistors in parallel. ISTR they would add their Rs doing that. ??
Anyway, unless somebody says no, I plan to order the replacement thermistor part. I see in the manual above that it goes on the 10th fin from the right, at least to start with.
