My Keurig is brewing short cups and when it is filling the cup water is also coming out of the valve dumping back into the reserviour. How do I fix this. It does not need to be descaled -- I've done this.

This problem is addressed on the Keurig website:

http://www.keurigtroubleshooting.com/Keurig-Coffee-Brewer-Problems.html

Scroll down to Partial Cup Brewing

It may be time to descale. Most models will give you a message when it's time to have the mineral deposits cleaned.
HERES HOW TO DO THAT...
Empty water resevoir. Disable auto off. Pour approx 48 oz of undiluted white vinegar into resevoir. PLace large mug on drip plate, run brew cycle, dump contents of mug in sink. DO NOT USE A K-CUP.
Repeat this process until the add water light is indicated.
Let brewer stand for at least 4 hours while still on.
Discard any residual vinegar in the resevoir and rinse thorughly.
AFTER approx 4 hours...fill resevoir with water.
RINSE:
PLace a large mug on the drip plate and water brew cycle. Pour the contents of the mug into the sink.
REPEAT this brew process until the add water light is indicated.
YOU MAY NEED TO REPEAT THIS "RINSE" PROCESS if you notice any residual taste.

THat happens, just get over it.

Hi,

Here is a tip that I wrote that will give you some things to try that will helpyou get your Keurig coffee brewer workingagain.

Keurig CoffeeBrewer not making a full cup of Coffee
heatman101

Hi, unplug the coffee machine and remove the cup.


Turn the coffee machine upside down over the sink in order to fully drain it of water. Be careful of the plug and avoid getting it wet.


Pour undiluted white vinegar into the reservoir up to the top edge of the viewing window.


Place a ceramic cup under the machine, plug it in and press "Brew" for a large cup. Pour the cups of vinegar into the sink and repeat the process until the reservoir is empty.


Remove the final cup of vinegar and empty it. Fill the coffee maker with clean water and allow it to sit for four hours, remaining on.


Unplug the machine and dump the water into the sink.


Fill up the reservoir with fresh, clean water and plug it in. Place the ceramic cup back on the drip tray and run multiple brews in order to rinse the machine of any remaining vinegar residue.

We had the same problem with our Platinum Keurig - the water would dribble out and stop before a full cup was brewed. It turns out the 3 openings to the upper needle were clogged (the Keurig specialist helped us). You have to pull off the little mushroom-shaped gasket first, then use a straightened paperclip and stick it into the 3 openings on three sides of the upper needle, moving it around for 15 seconds in each opening. Replace the gasket and then, by not inserting a k-cup, flush plain water through the needles for 3 different 6-oz brews (use a measuring cup to check). If you are still getting short-cups, you will likely need to call customer service. Make sure to clean the lower needle too - the instructions are in the book - but be careful not to break the funnel cover when removing. Good luck!

Scale---or mineral deposits---form from the water you run through your Keurig coffee machine. If not cleaned regularly, the buildup can clog the lines in your machine and ruin the heating element. The manufacturer recommends you descale Keurig coffee makers once every six months for normal water conditions and once every three months if you live in an area with hard water
1.Unplug the coffee machine and remove the cup.
2.Turn the coffee machine upside down over the sink in order to fully drain it of water. Be careful of the plug and avoid getting it wet.
3.Pour undiluted white vinegar into the reservoir up to the top edge of the viewing window.
4.Place a ceramic cup under the machine, plug it in and press "Brew" for a large cup. Pour the cups of vinegar into the sink and repeat the process until the reservoir is empty.
5.Remove the final cup of vinegar and empty it. Fill the coffee maker with clean water and allow it to sit for four hours, remaining on.
6.Unplug the machine and dump the water into the sink.
7.Fill up the reservoir with fresh, clean water and plug it in. Place the ceramic cup back on the drip tray and run multiple brews in order to rinse the machine of any remaining vinegar residue

Call keurig customer service 1800 cup brew

Valve is not bad that is not the issue you need to contact keurig to help you Call Keurig 1800 Cup Brew

What to Do If Your Keurig Won Brew Cup Barista