Dometic roof top ac

Sorry, I'm not missing anyone's point. I have worked with A/C units since the 80s. Doug is simply trying to impress everyone while putting me down. No problem, I understand efficiency and how that affects air temp output. Argue all you want, I'm not really listening. The proof is in the final temperature. This is my final post in this thread, my intent was to advise someone to buy a better unit vs trying to fix junk. Period. How this turns into a lecture on A/C shows how some people are. Goodbye.