Dash AC Wiring Diagram Needed

I am hoping somebody can pull a rabbit out of a hat for me. I am in need of the wiring diagram for an RVAC (Frigi-Cool) Model 212 dash A/C and Heater.

My unit recently went totally dead and we cannot locate the offending wire, relay, etc. I Googled but did not see any information on the web - I am hoping one of you might have some info.

Thanks in advance for any assistance.

RV info below in sig.

Thank you,

SoCal Kevin