Have you finally figured out, you have been scammed? You do NOT need the Dometic board, you need the 120 checked at your Main 120 Breaker box. ALL 120 connections for both the Intellitec and the Coach 120 system breakers are in that box. IF the Rear AC output relay has power going out of the Intellitec board, then the odds are the wire nut connections at the rear AC have burned apart, and you have no 120 power to the AC unit. After 43 years as an RV Tech, I have to admit that the current crop of so called RV techs are nothing but part changers. They have no diagnostics skills and just want to replace "Motherboards" as they think all problems are caused by faulty boards. Fur future reference, When I state Year/Brand /Model of RV, please post what I ask for
2008 - Monaco - Diplomat would be what I need. I thank you for knowing that it was the Intellitec system, but there are only 2 REAL systems used Intellitec and PCS. Doug