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Delivers only small amount of coffee per brewed cup

My Keurig B100, which I have had for 2 years, has started putting thruogh only about 4 oz. of hot water per cup, so I get a small, very concentrated cup of coffee. Any solution to adjusting the amount of water coming through? I have tried to run vinegar through it all day and all it does is spit a little bit out. My descale light never went on. We use softened, filtered water from our fridge. We have had it for about months only. The tech on the phone said to the the vinegar brew. And that the descale light doesn't always come on. (so what is the point of the descale indicator then I ask? Our brewer went from brewing the normal amount one day, to brewing a little less for a couple days--then a day later-nothing. It makes that awful groaning sound that it does when it is prepping to brew and then there is a longer delay for the pump of air to come, then it spits out an ounce of vinegar at best, then makes that groaning sound again and does nothing. What's up?

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Posted on Jan 02, 2017

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SOURCE: Delivers only small amount of coffee per brewed cup

Same problem happened to me. There is a plastic boot inside the tank that is broken. This seals the top to the tank to the center rod. Keurig will not sell me the $5 part. They would would be glad to sell me a new brewer though!

Posted on Aug 17, 2006

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SOURCE: Delivers only small amount of coffee per brewed cup

This is a scale issue. All water has minerals wich builds up inside the brewer through time. All you need is white distilled vinegar. Drain the Keurig first and then fill it with the vinegar. After the heat reaches brewing temperature, open and close the drawer to run off a few blanks (3 to 4 cups is plenty). This will prime the vinegar though all the lines. Refill the tank to the top with more vinegar and let the brewer sit (on) over night. The next morning, run off more than half of the vinegar. You should see the cup sizes drastically increase. Within a few cups, you should be getting close to the original 8oz cup. Repeat a few times for good measure. Drain the remaining vinegar, then flush a couple full tanks of good water through it. After all remnants of vinegar is gone, your brewer should work like new.

Posted on Jun 25, 2008

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SOURCE: Delivers only small amount of coffee per brewed cup

this is not a scale issue, mine arrived from the factory producing only 6oz of water. way to strong for most. called the factory, scale, scale blah blah blah, vinegar untill we were blue. bored one day took the unit apart. on the right hand side there is some clear tubing which housed a one way valve, took apart and the valve was partally clogged. removed cleaned and reinstalled, this valve works best when not fully" seated" where it belongs so reinstall gently into the hose and leave it alone. I know what your thinking scale, scale scale. wrong. still only made 6 oz cups. there is a timer device on the back wall of the front panel on the right side as you face the unit. it is adhered to the wall with two sided tape. pry it off and on the back low and behold is a timer screw that changes the length of pump run time. turn clockwise with a sharp knife or eyeglass screwdriver and retest. 9oz of water. shame on keurig for not being more responsive to its customers.

Posted on Jan 19, 2009

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

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Descaling depends the size of the reservoir. I see the B60 but not the B66 at the Keurig site. The two units are apparently the same from searching the support side of the Keurig site: http://www.keurig.com .

For the Mini coffee makers, you use 20 oz of vinegar (2 10 oz cycles). For the larger Keurig units, it takes 48 oz of vinegar.

In either case, fill the reservoir with vinegar and put a large ceramic (12 oz mug for the mini unit) mug on the drip tray. Do not add a K-cup. For the B60 (and probably the B66), press the Brew button. Discard the vinegar after the cycle. Repeat the brew process until Add Water is indicated. Discard the vinegar each time. Then wait 4 hours with the unit on. Discard the remaining vinegar and rinse the reservoir. Fill the reservoir with 48 oz of water and brew several cups without a K-cup until the "Add water" message appears. Discard the water in the mug each time. Repeat the vinegar cleaning if De-scale still appears in the LCD. Run more water without the K-cup if you notice a remaining taste in the coffee after the rinse procedure.

For the mini, fill the reservoir with 10 oz of water, lift the Brewer handle and lower it after 5 seconds with no K-cup in the unit. Press the Brew button. Discard the vinegar after the cycle. After the first cycle, pour the other 10 oz of vinegar into the Cold Water Reservoir. Lift the handle and lower it after 5 seconds. Press the Brew button and wait until the light becomes steady. When vinegar starts to be dispensed, power off the unit. Wait 30 minutes. Then power on the unit and lift and lower the handle again. Then discard the vinegar after the cycle. Next run 4 rinse brew cycles with 10 oz of water each time. Discard the water each time. The unit should be ready to brew with a K-cup after the 4 rinse cycles.

I hope this helps.

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My keurig will not dispense right amt of water


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My machine only brews 1/2 cup of coffee. I have de-scaled twice within the last week and I get a full cup of vinegar/water, but as soon as I put in a K-cup I only get 1/2 cup of coffee out. The first cup...


I had some coffee grounds stuck up in the cone shaped hole that the water comes from at the top. I had to use a very long toothpick but it broke up some of the grounds that happened to get caught up inside. Before doing this, I went through 24 oz of vinager ;) .. the toothpick worked!

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Delivers only small amount of coffee per brewed cup


this is not a scale issue, mine arrived from the factory producing only 6oz of water. way to strong for most. called the factory, scale, scale blah blah blah, vinegar untill we were blue. bored one day took the unit apart. on the right hand side there is some clear tubing which housed a one way valve, took apart and the valve was partally clogged. removed cleaned and reinstalled, this valve works best when not fully" seated" where it belongs so reinstall gently into the hose and leave it alone. I know what your thinking scale, scale scale. wrong. still only made 6 oz cups. there is a timer device on the back wall of the front panel on the right side as you face the unit. it is adhered to the wall with two sided tape. pry it off and on the back low and behold is a timer screw that changes the length of pump run time. turn clockwise with a sharp knife or eyeglass screwdriver and retest. 9oz of water. shame on keurig for not being more responsive to its customers.

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