Train encountered power fault at front M1 car. Reset - ok. Fault recurred while arriving JURMT. Rese t - ok. Recurred departing JURMT - unable to reset. TC infor med slow pick up but achieved maximun target speed. ~~~~~ Check Tims found KI failure, replaced K1 done. Further check IHV1/2 and BCH ok, resistance within criteria. CCD fuse ok, power test ok. Not: 2189667 raised for KI (#1627). Done by Sanip/Koh/Din.  15/08/20.