My Keurig B70 has stopped working correctly. It is 16 months old and I make one or two cups a day. When it says "ready to brew", I put the kcup in and press "brew" and the machine begins to pump, then just suddenly stops. It doesn't make coffee and the window says "ready to brew" again. The water tank is full, I've cleaned the needles, I have descaled twice, and I don't make cocoa just coffee. Can you help me?

SOURCE: Keurig starts & stops without brewing coffee, just descaled

The pic is clogged with coffee or the air bladder is bad. Use the tool on the underside of the tray to clean out pic. If that doesn't work, the bladder will be bad.

SOURCE: MY b60 all of a sudden won't fill a full cup when

When I descaled my b60 I also used a paper clip to clean out a possibe clog in the little bottom drainage tube. The help I received suggested I also use the paper clip to check the top tube which I didn't know about. I did this and now it works fine...thanks for your help.

SOURCE: My Keurig B60 is Suddenly Brewing WEAK Coffee

I don't have a solution but have just experienced the same problem and am baffled. I am using the same beans same grind. In fact using the exact same grind it went from great one day to weak the next day.  I always run it for 15 - 16 secs to get the shot and that hasn't changed. Pressure and temperature appear fine. I cleaned the top of the top filter which was a little dirty but not seriously bad - no change. The coffee flow which is normally chocolate coloured to start with is just mid brown. 

SOURCE: Keurig only brews about 2-3 oz. of coffee.

Doesn't sound like a descaler issue. I am having problems with mine and noticed that water is flowing back into the reservoir when it is pouring into the coffee cup. I think there is a valve that is not closing properly.

SOURCE: Partial cup of coffee brewed

Call keurig customer service 1800 cup brew