Question about Keurig B100 Coffee Maker
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?
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
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
Just for your konwledge, this parts do not cause this probleme, and at my know dont realy do any probleme. is the leak of presure in the lower par of the water tank and the baffel (plastic disc at the end of the rod)and this leak is usaly due to broken sillicon tube on the baffel, lime on border of the lower parts of the tank or on the sillicon seal under baffel. or leak of power form the air pump, propbably atack by the rust if the one way valve don't do is job.
Posted on Jun 12, 2007
Here's the part of the problem thast no one is addressing. I also have a B100 that delivers about 4 oz of coffee from a standard K-cup. However, when simply running water through the unit for tea, it delivers the full 8 cup! Another symptom is that the coffee K-cup comes out with a small pile of grounds on top - leading me to believe that the water is flowing in, but not flowing out properly, even though the exit tube appears clear. Does that trigger any new thoughts?
Posted on Dec 22, 2009
I found a tell-tale rust spot on one of the B100's small motors (Located on the right when you view the B100 from the front. Evidently, some very small volume of water or steam had corroded it a little. This motor is the one that pumps the volume of water; the motor on the left operates the pneumatic system that lowers and raises to puncture and brew each cup). I took the motor off, disassembled the plastic piece attached to the top of it and cleaned that out then I used a dry lubricant to free up the shaft of the motor that had rusted and was not turning efficiently. Once back together, my coffee maker brewed again.
Posted on Feb 13, 2009
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
I have experience the exact same problem. I dismantled the entire unit and have snipped the ends of the silicon tubes and put them back on. I can see no cracks or problems with the valve at the bottom of the stem. The pumps seem to run but I am only getting about 4oz of water to the cup. Is there a way to test pump air volume?
Posted on Nov 17, 2007
Just fixed mine. Low pressure/water volume was due to a bad pressure sensor, light blue square just above the pump on the right side. I had a bad machine for spare parts. Sensor is made by micro pneumatics Ft Lauderdale FL
Posted on May 17, 2010
This is NOT a scale issue. Mine does the same thing. I have run vinegar through it twice.
Posted on Jul 30, 2008
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