TC reported air-con fault. Unable to reset. Staff(BIS) checked and confirmed that car 1606 set #1 ai r-con faulty. Reset - ok. Car was cooling. ~~~~~ TC reported air-con fault. Unable to reset   #1606 AC2-1 found low freon, vacuumed and charge freon LP 40 HP 110. Checked HP and LP pressures ok No freon leak.  Able to cut in and cut out. Monitored for 1 hour ok, saloon cooling. 22 degree. Done by Jack Koh Sanip. 24/7/2024.