I have been looking for a leak on our 08 Bay Star. Yours if like mine which I am sure it is a Evans-Tempco unit.
Ford to the best of my knowledge provides Compressor,Condensor, Reciver-Drier.
Evans parts are the heator-evaporator with expansion valve,blower air box assembly, control panel, and the water valve for the heator.
At the Newmar thread there are some ‘sticky’ Helpful hint etc #3 lookin there for Bay Star AC issues. 007 I bet where steer you in the right place to look.
Google “Evans-Tempco Newmar AC” should pull some info.
I replaced the condensor which was leaking. I have a son who loves to work on dash ac units so all the tools are at my use. He is always a text away for help.
John & Diane
2008 Bay Star 2901
2003 Jeep Liberty