If a button or some other object gets caught in the pulsator.
Take out the pulsator cap with "-" type screw driver.
Use a screwdriver to unscrew the screw in the center of the pulsator and lift the pulsator straight up in order to remove the button or other object.
Place the pulsator at its original position and tighten the screw.
Place the pulsator cap at its original position.