TC reported Front M2 air-con fault.Staff(YWT) checked and informed Front M2 #2 set air-con faulty.Reset ok, Car was cooling. ~~~~~ 2532 TC reported air-con fault. Staff(YWT) informed 2532 A/C 2 faulty. Reset ok, Car was cooling. CE:2532-found Ac 2-fast to cut out. Temp.24.5'C.  2532 A/c 2-1 HPLS low coolant pressure fault. Vacuum #2532 A/c 2-1 & charged the A/c system to LP=30psi HP=110psi. Retightened LP shut-off v/v & checked O-Ring & V-Core - OK. Function test A/c cut in/out operation & cooling at 23'C.  Hanafi 44236