Help! 2018 3121RL - Dead Dometic CT Thermostat No AC

[scott802]

Hi all,
We recently had our roof replaced on our 3121RL. Lo and behold we took the camper out on the road for the first time and the main A/C unit is not working. The bedroom Dometic thermostat and AC is functioning as it should. However, the living area Dometic thermostat is completely dead, no response at all. I first verified all the breakers are good etc. No blown fuses and I have power to the plugs etc. I am trying to verify that I have 12v coming into the thermostat. I also climbed up on the roof removed the AC shroud but nothing seems to be obviously wrong. Is there any possibility something didn't get properly reconnected when my roof was replaced for this AC unit? If so, why would my thermostat be dead?
Any help would be MUCH appreciated! We are out on the way to Pigeon Forge TN and need both AC units working.

Thank you!

Scott