THE CURE: Once weekly reach up inside with a hot, wet towel, and clean the round disk behind the flap that hangs down. If it jams, unplug and let it cool before turning it on - sometimes you may have to do this several times. It just happened this a.m., and I had to wait 1/2 hour between my 3rd and 4th cup :) The first time it happened, tech support walked me through the cleaning on the phone. The last time was more of a problem, and they shipped me a mailing label for a $245 complete rebuild, but I didn't have to use it.
3) This machine is crazy smart. It knows exactly when to clean itself, or tells you when to start the cleaning cycle. To clean it, all you do is insert a tablet in the coffee powder drawer and it does its thing. It knows when it needs water, when the filter needs to be changed, etc. In fact, since we have a water filter built into our refrigerator, we just use that filtered water in the coffee machine and therefore we don't need to use the expensive water filters. Bottom line, if you just pay attention and clean the machine on a regular basis when it tells you to, this is a no-brainer machine.