Quote Originally Posted by Gary View Post
So... the options are, the manufacturers do not make systems truly self-diagnostic because:

A. They are concerned about you keeping your job.

B. They don't know how to do it.

I vote for B.
Well, I think I do... Stick a thermistor in the suction line at a pre-determined spot and one in the liquid line at a pre-determined spot. Then stick a calculator inbetween the two, and WHALA self diagnosing.

Well... not self diagnosing but at least it would tell you the temps and the difference between them.