TC reported he needed to press and holdthe manual door close button a few times before the train do ors are able to close. ~~~~~ TC reported he needed to press and hold     Checked #3567 cab console A side door close button found contact block OL with intermittent 1.2-1.3ohm when depressed.Replaced contact block 0.2ohm when depressed.Door close function check ok.Security check ok. Done by Lincoln Koh.  16/03/22