TC reported APS fault intermittently atfront DT and rear M2. ~~~~~ 3503 and 2504 TC reported APS fault intermittently.  3503 having APS fault. A/c output current checked - OK. No abnormalities found on A/c system from TIMS fault data. Further checked/found #2503 having FC 614 (A/c 2-1 CMOCR-1). Found #2503 A/c 2-1 having high starting current (92.2 Amp). Isolated/tagged wires U/V/W. Notif 2250278 raised to RSW. Name                          : Aminur Date of Occurrence            : 20/02/2021 Last Service Date             :   EMU / Equipment / Location    : 2503 / Aircon 2-1 Equipment Serial No. (if any) :   Description of fault / cause  : Compressor Motor High Current Measurements (if any)         : 92.2 Amps Required Rectification        : Required Aircon C/O Note                          : Wire U/V/W isolated & tagged #2504 having APS fault. Found #2504 A/c 1-2 motor shorted to GND. Further checked/found 1x CHR(e) burnt & replaced. Isolated/tagged wires U/V/W. Limited movement/depot shunting & no recurrence of APS fault found on all cars. Notif 2250269 raised to RSW. Name                          : Aminur Date of Occurrence            : 20/02/2021 Last Service Date             :   EMU / Equipment / Location    : 2504 / Aircon 1-2 Equipment Serial No. (if any) :   Description of fault / cause  : Compressor Motor shorted to                                      ground Measurements (if any)         :   Required Rectification        : Required Servicing Note                          : Wire U/V/W Isolated & tagged  Aminur/Khairul 44247