Good Evening All!     A bit of background before I go any further: When I bought the car a couple of Months back, I was told that the A/C was warm and could do with a re-gas. Having got this done, within a few hours, it was nowhere near ice cold.  Using the self-diagnostic would sometimes re-set (producing the Fault Code 4FA - Re-Circulating Flap), and would blow ice cold for no more than about five minutes, before going back to blowing warm air again.  I took it back to the local