enblethen Yes, I agree that proper pressure does not guarantee sufficient flow.
And it seems that I have insufficient flow (volume). The thermostats method of controlling temp is to allow more flow when cooling is required. That is done by opening up a second passage (sort of a passing lane). If, indeed, the 'stat is opening that second passage then there must be a restriction (unauthorized) somewhere between the regulator and the orifice.
I bought the RV used and don't know if the fridge EVER really worked well on LP. It does well on A/C.
lunch time --- later