Train encountered power fault at car 1664 while departing station. Reset at MSP SB - ok. Fault recur red at MSP NB. Reset at MRB NB - ok.B. Reset at DBG NB - ok. TC reported train performance pick  ~~~~~ 1664 encountered power fault departing station. Reset at MSP SB - ok. Fault recurred at MSP NB. Reset at MRB NB - ok. Fault recurred at CTH NB. Reset at DBG NB - ok. TC reported train performance pick up slow. CE : 1664 power fault unable to reset.  1664 Found power fault indication light up. Check CCD fuse - ok. Found both CHRE1's charging resistors with burnt marks. Measured both O/L. Replaced both charging resistors and measured - ok. Replaced new contact tips on K2, L1 and K1 as all are worn out. Conducted limited movement - ok. No power fault occured.  Aliff/Azmi/Chan SW/Redzwan 45229