TC reported A/C fault. Unable to reset.Staff(NOV) checked and confirmed RM2 car #1 and #2 faulty. U nable to reset. Car was warm. ~~~~~ TC reported A/C fault. Unable to reset.     #2618 found a/c 1-1 low pressure pipe charging point coupling heavy freon leak.Tighten back coupling and leak test ok.A/C cooling cut in/out ok.A/C 2 check pressure ok,compressor motor check ok.Further monitor cooling ok. Done by Fridaus. 16/07/20