Bests & Worsts Reviews from Amazon

Note: I love the coffee maker but felt that rating it only one star would help to bring this "fix" to someones attention that has a similar problem. I bought this K45 early December 2014 (from a local retailer) and in January 2016 it would not fill a cup and the descale light came on. So...I purchased the "Keurig Descale Solution" locally ($12.99 ugh) and followed all directions. NOTHING happened. Still just a trickle of hot water. I was just about to throw it out and spend another $100 or more for another. (I love this thing when it works) Instead I decided to check out the insides so I got out some basic tools (small philips screw driver and a pair of needle nose plyers) After taking off the bottom metal plate and not finding any obvious problem and replaced it. I then removed the drip funnel and made sure it wasn't clogged. My next step was to remove the 2 screws that hold the black "framework" that holds the upper needle and I removed the top trim cover screws (2) and removed the top and found that the tube and right angle fitting between the check valve and the upper needle was almost totally clogged with black debris (I first thought that this must be plastic shavings that came off some internal part(s). I removed the plastic "saddle" and cut away the zip-ties that secure the fittings and tubing together. Cleaned everything and made sure the check valve was working properly by blowing from both ends. You'll only be able to get air through one end. I reassembled the valve and tubing and plugged the unit in, added water, turned it on and put the end of the tube in a bottle. It worked great!! I reassembled everything (needed the needle nose plyers to help reposition the #4 screws in the holes since my fat fingers were too big) The coffee maker now works like new. Now what was the source of the clogging material?? It was coffee grounds. I theorize that when the latching lever is pulled down the top needle pierces the K-cup and the coffee expands during the brewing process, some grounds can get pushed back into the tube. The right angle fitting trapped a bit of coffee over the many months of use and eventually limited the amount of water that could get past. The higher pressure resulted in the Descale Light coming on and less than half the needed water getting through. Note: I actually love the coffee maker but rated only one star to bring this possible solution to anyone that has a similar problem. CAUTION, do NOT work on the unit while it is plugged in. If you feel that you don't have the skill to perform the tasks I described above, DON'T TRY IT. When the water comes out the tube, it will be HOT. I will not be held responsible for ANY injuries that result from any attempt at fixing the coffee maker.