TC reported air- con fault at Rear M1 car.Staff (YIS) checked and informed #2 set air- con was fau lty.Reset - ok.Car was cooling. ~~~~~ 1642 A/C 2 :To check evaporator for leak ADDL: 1642 TC reorted air-con fault. Staff (YIS) informed A/C 2 faulty. Reset - ok.  Car was cooling.  1642 checked/found no FC registered. Found #1642 A/c 2-1 & 2-2 Hp/LP out of criteria. (A/c 2-1 HP=50psi, LP=10psi) (A/c 2-2 HP=40psi, LP=8psi) Charged in freon to criteria. (A/c 2-1 & 2-2 : HP=120psi, LP=40psi) Checked condenser unit for any leak - Not found. Function test A/c cut-in/out operation - OK.    Monitor for 1 hour, cooling OK & no fault reoccur. OPS 20 raised for evaporator unit check for leak.  Khairul 45001