I have a different problem with my Norcold 1200 model and found help at Bryantrv.com/docs. For mine they have a lengthy service manual that told me how to reset the power board (my problem was the readout said "no co" and the operators manual said to take it to a Norcold dealer to reset the board). Perhaps they have a posting for your model. Hope this helps.
Bob, Sandi & Marmaduke the Big Pug
SW OREGON 2004 Journey 39K, 330 Cat
If towing: a 2006 Mini Cooper or 1995 Wrangler