TC reported air-con fault. Unable to reset. Staff(CCK) checked and confirmed that car 3649 set #1 ai r-con faulty. Unable to reset . Car was warm. ~~~~~ TC reported air-con fault. Unable to reset. Staff(CCK) checked and confirmed that car 3649 set #1 air-con faulty. Unable to reset . Car was warm. CE:3649 ac1 power,  vent  n fault unresettable,  temp 29.9  FC408/414, further check found AC1-2 CCU motor shorted to ground. Notification to HM C/O. Notif: 2603123. Done by: Rizman and Koh. 29/05/2024.