Since I posted in the thermostat thread http://www.sunlineclub.com/forums/f6...er-8512-2.html
, it was easy to find.
Read all of it from p. 2 and do not waste your time or money if you have a CSA trailer, as you should if you bought it new in Canada. The CSA wiring is somehow inconspicuously different and much sharper electrical minds than mine were not able to solve it.
This is an intriguing problem that may have been unique to Sunline/Dometic as I had zero problems switching the Coleman analog of our current also CSA Arctic Fox for the equivalent Coleman digital. The digital is indeed far easier to adjust and holds its set point instead of wandering up and down over about 5°.
The Dometic/Duotherm is available at Amazon.com
, but I couldn't find it on amazon.ca. Check the shipping because you can likely get a better deal at a local RV dealer. Several items I've bought over the years at my local Rockwood dealer, I've been surprised at how competitive their prices are and usually with no shipping.