TC reported air-con fault at Rear DT car. Unable to reset. Staff(EUN) checked and confirmed that Rea r DT car set #01 air-con faulty. Reset - ok. Car was cooling . TC reported air-con fault at Rear DT car. Unable to reset. ~~~~~ CHECK AND FOUND 3518 AC 1-1 AND 1-2 LOW FREON.RECHARGE THE FREON AND CHECK SYSTEM ABLE TO CUT IN/OUT.CHECK NO LEAKAGE.CAR WAS COOLING OK.JAYA/FAHMI 22.01.2023