Call Keurig
I am on my 3 or 4th keurig. These machines have a very short lifespan (I have really hard water). I only buy from a place that has a generous return policy (Costco, BBB, Kohls). The last one I bought at Kohls and it died before a year and I contacted Keurig directly and after they had me do some things to it over the phone they declared it dead and shipped out a new one right away. All I had to do was mail them back 1 little part.
Since yours is older than 1 year I'm not sure if they will honor the warranty. However, from my experience with them they seem to really want to help out and especially since you bought directly from them they will probably do what they can to keep you as a customer.
I also accidently broke the lid of one their cup (that I got for free during a Kohl's k-cup promotion) and called to ask about a replacement lid (that I was fully expecting to pay myself). Well, they shipped out a whole new one to me, no questions asked.
So far their CS is excellent.
Mary
DS Summer '05
DD Fall '08