TC reported converter train fault. Faultself-cleared. Fault repeated while departing BBT2. ~~~~~ #1647 FC-414/408. A/C 1-2 motor shorted, caused APS fault. Disconnect U,V,W wire and tagged. Damper open/close noise due to APS fault. Not: 2181460 raised to RSW on #1647-a/c 1-2 motor shorted. Checked by Saini/Din/Haslan. 20/07/20.