We really liked our Keurig Express; but the check valve malfunctioned and stopped sending hot water to the coffee pod head. Keurig was totally supportive in sending us a replacement unit
The fist and only Keurig coffee maker owned was a gift from a friend at Christmas before she passed away. I’ve used it every day since receipt. I was very sad when it quit working. It must be something simple to repair. I am enjoying my replacement immensely!