It's not unusual for there to be a brief pause after pressing the start button on the WF218ANW, during which time the weight sensor and other functions are activated. In addition, the buttons are designed intentionally to require a firm and purposeful touch in order to prevent accidental activation. With that in mind, if your Start button is unresponsive when pressed firmly and purposefully, your washer may require service. To initiate service, please submit an online service request through the link below, or call 800-SAMSUNG to speak with an agent who will be happy to assist you.
Online service request form: http://www.samsung.com/us/support/o...