We're sorry to hear the single-serve side stopped functioning properly after only three weeks of use. If the pod brewer is not operating as expected, we recommend ensuring the water reservoir is properly seated, checking that the needle area is free of buildup, and performing a cleaning cycle, as blockages can sometimes affect performance. Please contact our Consumer Assistance Center at 1-800-726-0190 and reference Ticket #8901031740 so we can further troubleshoot and assist. Thank you for sharing your feedback—your experience helps us identify opportunities to improve future models and provide a better experience for our consumers.