TC reported air-con fault. Unable to reset. Staff(BGB) checked and confirmed that car 1502 set #2 air-con faulty. Unable to reset. Car was warm. ~~~~~ Checked and confirmed #1502 FC 408 (ARS fault) and FC 414 (APS inverter over current) triggered when a/c 2 cut in. Further checks #1502 a/c 2-2 compressor motor shorted to ground. Isolated U-V-W and tagged. #1502 a/c 2-1 able to cut in/out without APS fault, car cooling. Not: 2286798 raised to RSW for #1502 a/c 2-2 CCU c/o. Done by Sanip/Fadzzal/Deeshan. 18/06/21.