TC reported air-con fault. Unable to reset. Staff(CTH) checked and confirmed that car 2568 set #2 ai r-con faulty. Reset - ok. Car was warm. ~~~~~ TC reported air-con fault. Unable to res   Checked TIMS found FC 619, 519 and 628 for car #2568. Further check found AC 1-1 and 2-1 low freon, vacuumed and charged freon to criteria ok, checked and monitored, no signs of freon leakage. #2568 checked and found freon HP 200, LP 20, indicating a choked AHU. Raised OPS20 to replace 2568 AC 2 AHU. Done by: Saini, Asruddin (2.7.24) 2568 AC 2-2 AHU Choke C/O AHU   Replaced #2568 AC 2 AHU. Charged freon observed AC 2-2 Lp: 40psi, Hp: 110psi ok. AC 2-1 found Lp: 60psi and Hp: 100psi, CCU choked. Notification to HM: 2613775 Done by: Jack, Sanip, Koh, Rizman (3.7.24)