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Anonymous Posted on Apr 06, 2014

Prime light comes on. Won't brew. - Keurig B50 Coffee Maker

1 Answer

Bob Jones

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  • Expert 92 Answers
  • Posted on Sep 28, 2014
Bob Jones
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Joined: May 19, 2014
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Lift the reservoir, then reseat it. This will clear the prime message. If it repeatedly comes back then your machine is dead. If in the year warranty, call Keurig they will ship you a replacement. A very common problem.

5 Related Answers

Anonymous

  • 43501 Answers
  • Posted on Jul 16, 2011

SOURCE: MY MACHINE ONLY SAYS "PRIME"

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

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Anonymous

  • 43501 Answers
  • Posted on Aug 28, 2011

SOURCE: coffee light indicates to prime; however, no prime

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

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mc1bean

Mike Cairns

  • 3054 Answers
  • Posted on Aug 29, 2011

SOURCE: My Keurig keeps saying Prime

Hello ,

      Often the pump gets air in it and does not prime correctly. It will then only pump a little water. To fix this you may need to get rough with the machine. Slamming the reservoir onto the machine will sometimes work, The shake rattle and roll method also will have the desired affect sometimes. Some have turn the machine upside down over the sink, have slapped the sides of the machine, or even shake the machine to get the air out of the lines.
      Once you do get the pump to prime properly, you can keep the pump from getting more air by making sure to fill the reservoir before it gets empty by using a pitcher to fill the tank instead of removing it and filling it.


With some K-cups, the bottom needle does not pierce the bottom of the cup if you simply place the K-cup into the holder and then close the top. Extra effort may be needed to make sure that the K-cup gets seated properly so that the water can flow through the K-cup easily. If you have water still in the K-cup when you remove it after brewing, you are having this problem.


Also here is some more information that could help as well:

Descale the coffee machine....
White vinegar is recommended, but it seems like lemon juice works just as well or even better. Also there are many different commercially sold products to descale coffee machines. One of these is a product called CLR which seems to do a great job. Some people have even used their denture cleaner to descale the coffee brewer. Dissolve a couple of tablets in water and place in the reservoir... then run the solution through the coffee machine to clean it.

Another common problem is that foil from the K-cup lid will get stuck in the needle that punctures the top of the K-cup. Like wise the bottom needle can also get coffee grounds or other debris stuck inside it. Scale from the descale procedure can also be a problem. To get the needles clean the best thing to use is a paper clip. Do not use a toothpick as that can break off inside and cause greater problems. Bend the paper clip so that approximately 1" is straight. Then insert the paper clip into the needle and wiggle to clear any debris. On some brewers the K-cup holder can also be removed, the bottom will twist off to reveal a nozzle that also has small holes that will plug up. Cleaning these holes may be the ticket to a great cup of coffee again.

Check to see if you have water running back into the reservoir when you are brewing a cup of coffee. If you have water bypassing, then you have a problem, there should be no water returning to the reservoir if the brewer is working properly. To stop this from happening there are a few things that you can do.

. You can hold your finger over the white tube in the top of the reservoir to place more
pressure on the water to flow through the needle and expel the debris from the tubing.

Take a can of compressed air like you would use to clean your computer and blow air through the tube(s) in the reservoir and also the needle(s) to clear dirt debris and water from the machine. This process may make a mess so be sure to have the machine is a place where the mess can be cleaned up easily. Some have even used a large tire type air compressor out of desperation, and report that it does work. I would use great care with this method and shoot the air in very short bursts.

Hope this helps......... Mike from fixya.

Anonymous

  • 43501 Answers
  • Posted on Sep 03, 2011

SOURCE: Machine says to prime afer brewing. How do you

Hi,

There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
heatman101

Anonymous

  • 43501 Answers
  • Posted on Sep 11, 2011

SOURCE: I have a "prime" light and cannot brew coffee.

Hi,

There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
heatman101-
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Related Questions:

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1answer

Blue light is flashing where the water goes and it says prime. it won't brew. what do i do?

Remove the water reservoir, then reinstall it to it's normal position. Refill or top off with the recommended bottled or filtered water to the max fill line.This will clear the prime message. If after you do the the above procedure at least two times, the prime message keeps coming back your machine has brewed its last coffee. If you bought it from Costco, I would recommend returning it there. Or If still within the 12 month warranty period, call Keurig.1-866-901-2739. Tell them and they will ship you a replacement.
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Screen displays "prime" and does not brew beverage, menu does not display

Lift the reservoir, then reseat it. This will clear the prime message. If it repeatedly comes back then your machine is dead. If in the year warranty, call Keurig they will ship you a replacement. A very common Keurig problem.
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I have a "prime" light and cannot brew coffee.

Hi,

There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
heatman101-
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My keurig is flashing NOT READY and AUTO OFF SET and won't brew or even turn off

Hi,

There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
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Blue light keeps blinking and its full of water-- just got it today and it won't brew

Hi,

There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
heatman101-=-
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Machine says to prime afer brewing. How do you

Hi,

There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
heatman101
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My Keurig says not ready, water won't stop coming out. when it reads brewing, it stops.

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There is air in the lines and it is blocking the water flow...
Here is a tip that will help you getyour Keurig to prime...

Keurig CoffeeBrewer will not prime
heatman101
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Machine stoppped working

Try this remove the brew unit and clean the screen on the unit, then insert unit, and open steam/hot water valve to prime. If that does not work then there might be a malfunction with the pump, I am assuming that the machine is only 2 weeks old?
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