CBTC applied EB due to train doors opened while moving. TC feedbacked fault door open in motion and timeout at front M1 A4 door. TC reset EB and proceeded ATPM to next station. Staff(BGB) check and confirmed door front M ~~~~~ Downloaded ER and fault trace on PTU 007. Using door PTU observed #1639-A4 door encounter heavy failure status. Checked and confirmed door lock device solenoid having knocking sound during operation. Replaced door lock device-ok. Adjusted door lock s/w-ok. Adjusted door mating strip to 63.5mm. Door cyclic/function test ok. Door lock device- Old s/n: C151BDL156003. New s/n: C151BDL14509. Not: 2170095 raised to RSW. Done by Kumar/Jack/Sateesh/Koh. 15/06/20.