TIMS showed APS fault at FDT. Train performance - ok. ~~~~~ TIMS showed APS fault at FDT(3519). Train performance - ok. CE checked:3519 Intrmittent APS fault- saloon warm.  3519 Aircon 1-2 found motor shorted to ground cause APS fault. Isolated U/V/W from motor, after function check ok. Raise notification to HM for CCU changeout. Notification to HM:2600796 Done by Saini/Din/Morgan 45433