Question about Bunn Coffee Makers & Espresso Machines

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Bunn doesn't brew whole pot

I put in 10 cups of water in and only 8.5-9 come out. I just cleaned it and it still isn't working correctly.

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This could be the coffee powder absorbing water. Try running a brew with no coffee powder. If the level is correct you know the powder is absorbing the water. If not it's likely being list via steam/evaporation and/or a leak.

Posted on May 07, 2014

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Posted on Jan 02, 2017

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SOURCE: my bunn is too slow

Use the de-liming spring to clean the copper tube behind the spray head. Pour several pots of clear white vinegar through the unit to further remove lime and scale from the interior of your coffee maker. My Bunn is 24 years old, and the only replacement parts I've ever required are new carafes and the 4041 silicone washer repair kit.

Posted on Sep 19, 2007

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It's possible that the hose or valve running from the tank to the heater is partly clogged. See superkev2000 and W5VSI fixes posted here.

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Finally, I got my coffee pot to run through without stopping several times. To fix it I had to run vinegar through eight times! Never before has it taken so many cycles to clean out a pot. It is still spluttering a bit so today I am going to get more vinegar or maybe even CLR and run it through a few more times.

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SOURCE: GE 169164 Coffee Pot Not Brewing

Loosen the charcoal filter. You only need to GENTLY place it in. Your problems will all be solved. I just did it 5 minutes ago and i just brewed a 6 cup pot of coffee completely.

Posted on Apr 03, 2009

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1 Answer

How to activate a 10 cup bunn coffee brewer model nhb?


I don't understand the question, but here is a try.
1 - put in two pots of water.
2 - put in third pot, the water should start coming out
Allow the water to heat (thirty minutes) then put coffee in filter housing, put in one pot of water, put empty pot on warmer, close lid, wait for brew cycle, enjoy coffee.

Feb 27, 2015 | Bunn 10 Cup Home Coffee Brewer

1 Answer

What is the best way to remove lime scale and other mineral build up from a Bunn VPR coffee maker? Water flow has been reduced to a trickle even though we used filtered water.


I always use CLR to clean my coffee maker. You don't need much more than 1/4 cup and mix with 8 cups of water and brew it like you would make a pot of coffee, then dump it out and run 2-3 more pots of just water, that should work fine. Also, run vinegar thru the machine once in awhile to help keep it clean

Apr 13, 2010 | Bunn VPR Coffee Maker

1 Answer

Will not percolate. Water is poured, it heats up, no coffee brew


Bunn Home brewers don't perculate. They work the same way that commercial brewers do. Fillit with water, let it heat for about 20 minutes, then put your filter and coffee grounds in the funnel, pour a pot of water into the machine, put the pot on the warmer, and let the water run through. Then enjoy a nice hot cup of coffee.

Apr 12, 2010 | Bunn BX HOME BREWER 10-Cup Coffee Maker

1 Answer

How much vinger do i used to clean the bunn i2 cup pot


You will pour 1 quart of white vinegar in where you would normally put water to brew coffee. This should be done with the machine on and full of water. Please let this sit in the machine for 2 hours and then flush out with 8-10 decanters of water.

Mar 08, 2010 | Bunn GR10 Coffee Maker

1 Answer

When I put in, 6 cups of water, if the 10 cup Bunn coffee maker after it has sat overnight, it only expels about 4 - 4.5 cups. I don't think it can all be evaporating or being absorbed in the grounds can...


look for water leaks around pot. Otherwise do a daytime brew to compare your difference between the amount poured in and what comes out. Please note that less water should mean using less ground coffee. Suggest 1 heaping table spoon per brewed cup.

Feb 10, 2010 | Bunn 10 Cup Home Coffee Brewer

2 Answers

My tim hortons coffee maker is not brewing as quickly..s there a wayto clean it


Make a 1/2 pot 50/50 mixture of cold water and white vinegar then run it through the machine in normal brewing fashion. Place a clean filter in the brewing cup to catch the white deposits that are removed. Allow the mixture to cool, then repeat the process several times while using the same filter. Finally, run several pots of fresh water through to work out the taste of the vinegar. Repeat whenever the brewing time seems to be excessive.

Feb 02, 2010 | Bunn Pour-Omatic Coffeemaker, 10 Cup White

2 Answers

Bunn coffee maker leaks all over the counter. What


there's probably a 'silicon rubber' hose that feeds hot water to the 'grounds basket'- it may be loose, or damaged. is it leaking water, or coffee?? we have a bunn 8-cup, which has a pre-heated water tank that brews a pot in about 3 min. energy waster, but when you need coffee, you need coffee!!! is your filter holder properly centered? is the carafe lid hole clean and un-obstructed?
if it's leaking water, and not too costly to replace- you may consider replacing it with a new one!
good luck!

Oct 09, 2009 | Bunn GRX-B Original 10-Cup Home Coffee...

1 Answer

Bunn coffee drips slow


I had the same issue, poured in 8 and out came 6. Here's what I did to clean and fix.
1) Unplug the NHB
2) Remove accessories like the pot and basket
3) Bring NHB over to the sink
4) Snap off the entire top cover (not the swing lid) by starting at the front and lifting upward (the top cover is about 1/4" thick). The back of the top cover will pivot a bit and then pop off exposing the pour reservoir. Remove the flow stopper inside the pour reservoir by lifting it straight up.
5) Place the top cover and flow stopper aside.
6) Remove the brew diffuser (located underneath the top where the brew basket goes. Twist counterclockwise gently but forcefully enough to snap it past the lock tabs which hold it in place. You'll know that it you've done this correctly when it just falls out.
7) Still over the sink, tip the NHB in a fashion where the back side is facing upward and the brew side is facing down into the sink. You'll be holding the NHB horizontally by the top and bottom of the unit. This will allow any water in the tank to pour out the brew spout. Begin to tip the unit as if tipping upside down as this will allow any remaining water to drain out. If this does not work the brew spout hose may be clogged and you can just tip the unit entirely upside down to empty it from the fill hole in the pour reservoir.
8) Return the NHB to the upright position in the sink.
9) Using a scotch brite sponge and some baking soda, clean the inside of the pour reservoir and rinse.
10) Using the tool Bunn provided, clean out the brew spout hose which is located under the brew hat. This is the little hole where the water comes out. If you don't have the tool Bunn provided you could use something like a plastic tie-wrap. Don't use anything metal as the hose you're cleaning is made of plastic tube and could become punctured. Clean this hose for just a minute or two to ensure that there are no significant obstructions.
11) With the NHB upright in the sink, pour a slow stream of hot water from the faucet, about two cups, directly into the fill hole located in the pour reservoir.
12) Tip the unit horizontally, as in step 7, and place the tip of your finger over the pour reservoir fill hole covering it completely.
13) Shake the unit back and forth horizontally so the water in the tank splashes around and frees anything which may be built up in the tank. Some water may splash out of the brew spout hose.
14) Tip the unit as in step 7 to drain the tank water out.
15) Fill a 16 ounce glass with hot water and 2tbsp baking soda, mix and pour into the pour reservoir fill hole.
16) Repeat steps 13 and 14 once.
17) Repeat steps 11 through 14 three times.
18) Clean the pour reservoir cover, swing lid and flow stopper.
19) Put the flow stopper back in place.
20) Attach the top cover.
21) Clean the exterior of the NHB.
22) With the boil and warmer switches off, plug the NHB into the electrical outlet.
23) Turn the boil and warmer plate switches on.
24) Fill the NHB with one pot of cold water and close the swing lid. Wait one minute.
25) Fill the NHB with another pot of cold water. Place the pot on the warmer plate and close the swing lid. If water does not yet come out, fill with one more pot of water.
26) Allow water to drain from brew spout until it stops draining.
27) Empty pot.
28) Fill pot to 10 cup line and pour into the NHB. You should find that the NHB now delivers 10 cups back to the pot. Empty the pot.
29) Clean brew spout diffuser and replace back in the brew hat.
30) Clean the pot, pot lid and brew basket.
31) Wait ten minutes for the water in the tank to boil.
32) Brew your coffee as you normally would.

The only issue I experienced during this process was with the warmer plate switch. It appeared that the light in the switch blew although the warmer plate still warmed normally. Shortly after the water in the tank started boiling the warmer switch light started operating again.

Apr 05, 2008 | Bunn NHB Coffee Maker

2 Answers

Does not brew a full pot of coffee


I had the same issue, poured in 8 and out came 6. Here's what I did to clean and fix.
1) Unplug the NHB
2) Remove accessories like the pot and basket
3) Bring NHB over to the sink
4) Snap off the entire top cover (not the swing lid) by starting at the front and lifting upward (the top cover is about 1/4" thick). The back of the top cover will pivot a bit and then pop off exposing the pour reservoir. Remove the flow stopper inside the pour reservoir by lifting it straight up.
5) Place the top cover and flow stopper aside.
6) Remove the brew diffuser (located underneath the top where the brew basket goes. Twist counterclockwise gently but forcefully enough to snap it past the lock tabs which hold it in place. You'll know that it you've done this correctly when it just falls out.
7) Still over the sink, tip the NHB in a fashion where the back side is facing upward and the brew side is facing down into the sink. You'll be holding the NHB horizontally by the top and bottom of the unit. This will allow any water in the tank to pour out the brew spout. Begin to tip the unit as if tipping upside down as this will allow any remaining water to drain out. If this does not work the brew spout hose may be clogged and you can just tip the unit entirely upside down to empty it from the fill hole in the pour reservoir.
8) Return the NHB to the upright position in the sink.
9) Using a scotch brite sponge and some baking soda, clean the inside of the pour reservoir and rinse.
10) Using the tool Bunn provided, clean out the brew spout hose which is located under the brew hat. This is the little hole where the water comes out. If you don't have the tool Bunn provided you could use something like a plastic tie-wrap. Don't use anything metal as the hose you're cleaning is made of plastic tube and could become punctured. Clean this hose for just a minute or two to ensure that there are no significant obstructions.
11) With the NHB upright in the sink, pour a slow stream of hot water from the faucet, about two cups, directly into the fill hole located in the pour reservoir.
12) Tip the unit horizontally, as in step 7, and place the tip of your finger over the pour reservoir fill hole covering it completely.
13) Shake the unit back and forth horizontally so the water in the tank splashes around and frees anything which may be built up in the tank. Some water may splash out of the brew spout hose.
14) Tip the unit as in step 7 to drain the tank water out.
15) Fill a 16 ounce glass with hot water and 2tbsp baking soda, mix and pour into the pour reservoir fill hole.
16) Repeat steps 13 and 14 once.
17) Repeat steps 11 through 14 three times.
18) Clean the pour reservoir cover, swing lid and flow stopper.
19) Put the flow stopper back in place.
20) Attach the top cover.
21) Clean the exterior of the NHB.
22) With the boil and warmer switches off, plug the NHB into the electrical outlet.
23) Turn the boil and warmer plate switches on.
24) Fill the NHB with one pot of cold water and close the swing lid. Wait one minute.
25) Fill the NHB with another pot of cold water. Place the pot on the warmer plate and close the swing lid. If water does not yet come out, fill with one more pot of water.
26) Allow water to drain from brew spout until it stops draining.
27) Empty pot.
28) Fill pot to 10 cup line and pour into the NHB. You should find that the NHB now delivers 10 cups back to the pot. Empty the pot.
29) Clean brew spout diffuser and replace back in the brew hat.
30) Clean the pot, pot lid and brew basket.
31) Wait ten minutes for the water in the tank to boil.
32) Brew your coffee as you normally would.

The only issue I experienced during this process was with the warmer plate switch. It appeared that the light in the switch blew although the warmer plate still warmed normally. Shortly after the water in the tank started boiling the warmer switch light started operating again.

Oct 29, 2007 | Bunn NHB Coffee Maker

1 Answer

My bunn is too slow


Use the de-liming spring to clean the copper tube behind the spray head. Pour several pots of clear white vinegar through the unit to further remove lime and scale from the interior of your coffee maker. My Bunn is 24 years old, and the only replacement parts I've ever required are new carafes and the 4041 silicone washer repair kit.

Sep 15, 2007 | Bunn Pour-Omatic Coffeemaker, 10 Cup White

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