Hello - we're sorry to hear that your fountain has stopped working. Please give our customer service team a call or email so we can assist you. It's possible the pump tube has become disconnected, or perhaps the pump needs cleaning. Our team will trouble shoot with you to find the source of the issue and help you get your fountain working again, including sending out any necessary parts under warranty. You can reach us at 813-343-5775 Mon-Fri 8am-5pm EST or email us at customerservice@smartlivinghg.com - Thanks, SLHG