When I put 12 cups of water in the container, only 8 cups brew. Also, it takes 30-40 min. I ran vinegar through it twice and am getting the same results.

Over time, Calcium will deposit on the tubes and containers which get in touch with water. Try Decalcifying with Designated Products.
Usually, you do this by diluting the product, fill up the water reservoir, and cycle on the machine, without cofee of course,
Pour out the water. It will probably look troubled.
If the water does not start percolating, just let the water reservoir stand with the decalcification product for about 30 mins. don't leave it in overnight, because these products are slightly caustic to remove the Calcium, but it could damage parts if left in the machine overnight.

Repeat the process until the water starts running faster.
don't forget to rinse with regular water. 2 Cycles rinsing should suffice.
See manual for suggested products or just use 1/4 cup of Vinegar diluted with Water. .

you must physically remove the lime.
first remove the spray head and then brew the coffee in an empty waste container.
remove all the lime as much as you can.the hot water force the lime to go out .
IF YOU HAVE DELIMING SPRING THEN IT WILL WORK GREAT
thanks
please rate my work

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.

Cindy Wells

You can run a cup of vinegar through the machine. Run it just as you would making coffee, except without the coffee. Run water through the cycle at least twice to remove sediment and the vinegar. Works like a charm.

My keurig did the exact same thing. Stuck on large and wasn't pulling water into coffee maker so it would only dispense a small amt of coffee. I turned it off for about 10 mins. Emptied the reservoir and filled it half way with white vinegar. Ran several cups through and after 2nd brew it ran faster and after the 3rd run with vinegar all the size cup lights came back on. It is working great now. Just empty reservoir with remaining vinegar and rinse. Run a couple cycles of plain water through the coffee maker to rinse out vinegar. I hope this works for you.

This usually means that you need to get a new coffee maker.

This occurs occasionally if the unit needs cleaning or you are brewing a new pot of coffee immediately after emptying a hot pot of coffee.
Run a cup of vinegar through the coffee maker twice, run at least 2 pots of clean water through to rinse the vinegar out.
This should clear the problem until it needs cleaning. The suggested frequency of cleaning is every 30 pots, but this varies depending upon the type of water you use.

Run 2 cups distilled white vinegar and 2 cups water through the system - brew it like it was regular coffee. Then run plain water through the coffemaker to rinse the vinegar out and make sure the decalcification was successful. Repeat as needed. Don't forget to remove the charcoal water filters first.

-Tha Mp3 Doctor

I have this problem with a 4 cup model. 4 cups in, 2 cups out. I cleaned it twice with vinegar (with a filter in place). The first time didn't seem to help, but the second time I got about 2.5 cups out, along with a bunch of old grounds that I think had been sucked into the pump. Ran water through it twice, and now it gets to about 3 cups.

I think the problem is just that the pump is clogged with grounds. If vinegar makes yours worse my guess is that a big piece got dislodged and is now blocking the tube. More vinegar might help.

I called Cusinart support and they told me to fill with 2 cups of white vinegar and the rest water, let set for three hours. Did that. Had to keep hitting the on button to get this solution through. Then used a solution of one cup of vinegar and water and this ran through the whole cycle. Ran three more with just water and now it works just fine. Brewed coffee this morning with no problem. Didn't think this would work but seems to have solved the problem. They do suggest you decalcify once a month using the vinegar solution...hope I remember to do this as it would be a lot easier than having to get hitting the on button. Good luck!