3528 SnapRep reported of very high pitch ~~~~~ 3528 SnapRep reported of very high pitch sound. CE 3528 no high pitch sound detected n A1 door noisy when opening n closing.  3528 A1 door Checked no high pitch noise. APS checked from TIMS - SATIS. A1 door check found RHS door leaf wobbled badly. Found inner door roller pitted badly. Replaced & function ok. Door guide checked ok, no FOD. Door plunger & sensing switch checked ok.  Aliff/Azmi/Redzwan 45226