Train encountered power fault at Rear M1while arriving station. Reset at TAP2 - ok. Fault recurred arriving NOV2. Reset at NOV2 - ok. Fault recurred arriving N EW2. Reset at NEW2 - ok. Fault recurred again. Train perform ~~~~~ 1685 encountered PF arriving station. Reset at TAP2 - ok. Fault recurred arriving NOV2 and NEW2. Reset - ok. Train performance - ok. Train was replaced with a scheduled withdrawal train at JUR after evening peak hours. CE: T251(3686) RM1 car 1685 having pf 3x. All pf on this car able to reset.  1685 ER downloaded - FC 150/320/821/827. Checked & found inverter 1 U,V,W shorted to ground. Further checked found T/M 2 U,V,W Shorted. T/M 1, 3 & 4 - OK. Inverter 2 - OK. Raised notif. 2528107 to RSW to replace 1685 TM2. Isolate PRCB & Tagged. . OPS 20 Raised to replaced 2 pcs of charging resistor on 1685. Sarma/Anand/Shafie/Alan 45198 1685 To replace 2 charging resistor. (Refer to M/O 11792897) 3685 -  Train encountered power fault at car 1685 while departing BSD TB2. Reset at signal 0513 - ok. Fault recurred approaching AMK NB, 2nd Reset at AMK NB - okay. Fault recurred departing AMK NB.  3rd reset at YCK NB- okay.  1685 found power fault. Checked/found 2 pcs of charging resistors OL. Replaced with new charging resistors. Performed limited movement & powering current checked - OK. (refer to M/O OPS 20 of M/O 11789348).  Zulfudhly/Farid/Haiqal/Koon PL/Amir 45202