The Door Cam Riser is an OEM replacement part for Samsung refrigerators. It is a crucial component that facilitates the smooth opening and closing of the refrigerator door, ensuring proper alignment and preventing potential damage to the door or hinges. Symptoms of a bad door cam riser include: Difficulty in opening or closing the refrigerator door The door not closing properly or remaining slightly ajar The door appearing misaligned or not sitting flush with the refrigerator body Causes of a faulty door cam riser can include wear and tear over time, physical damage from impact or mishandling, or issues with the door hinge mechanism itself.DA66-00344A (AP4156044) replaces 1515172, DA66-90112C, PS4156683.