2607 A4 door unable to open. to rectify ~~~~~ 2607 A4 door unable to open.(Train Prep)To rectify  2607 A4 door no Fault code. Check no sign of FOD at guide rail. Further check found A4 door wobbly and slight stuck due to RHS outer roller damage. Replace roller done. Service guide rail, Jrail ok, no rubbing mark, Push/Pull resistant ok, Matting ok. DLS, DCS, DLD cushion ok. Door opening/closing and static tesgt ok Done by Haslan/Asruddin 45127