Function of ice maker rudder] The function of the shut-off rudder arm is to shut off the ice maker when the ice cube bucket is full. The most common reason for replacing the shut-off rudder arm is that its absence causes the ice maker to stop working, now the ice maker is equipped with 7016326 ice maker shut-off rudder arm to avoid putting the pie in there and prevent it from popping out. Excellent replacement] The ice maker's closing tiller arm is white and has a high quality plastic material that more effectively prevents objects from falling in and causing it to pop out. Suitable for Sub-Zero freezers. Why replace the shut-off armThe purpose of the shut-off arm is to shut off the ice maker when the ice bucket is full, if it is missing or damaged, the ice maker will not work properly and keep the freezer from being in ice cold condition. Easy Installation7016326 shutdown tiller is very easy to install, just find the location of the ice maker in the refrigerator and replace it without any tools (Note: you need to cut off the power to the refrigerator before replacement to prevent electric shock).