TC reported intermittent APS fault. Train performance ok. ~~~~~ Confirmed #1640 a/c 2 causing intermittent APS fault. Further check #1640 a/c 2-1 compressor motor shorted to ground. Isolated U-V-W and raised notification to RSW for CCU c/o. Not: 22867768 raised to RSW. Checked by Yusof/Imran/Haffiz  17/06/21.