Question about Bunn CWTF20-3 Automatic Coffee Brewer - 20amp

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Bunn cwtf20-3 makes weak coffee - Bunn CWTF20-3 Automatic Coffee Brewer - 20amp

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Inky Fingers

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When you pull the basket out after its finished brewing what does the surface of the coffee look like? Are there 6 or so clearly defined dimples in the surface where the water pours from the spray head? Is the powder uniformly wet? If the answer is no to either of these, remove and clean the spray head. Use a descaling tablet or powder to soak the spray head and then use a small tool to clear the holes. Be careful not to make the holes bigger though.

Posted on Nov 01, 2013

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Danobegood

  • 5 Answers

SOURCE: 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.

Posted on May 23, 2008

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Kelley Hopper

  • 67 Answers

SOURCE: weak coffee

It sounds like you may have lost the sprayhead. It is under the brew basket (above the place where you put the basket with the filter and the coffee). Sometimes they get loose and you don't realize it and it can fall in the grounds and get tossed out after brewing.

Posted on Jul 18, 2008

atbsmmom

  • 189 Answers

SOURCE: I need a wiring diagram for a Bunn BX coffee maker

I do apologize but these diagrams are not available. What is the problem with the machine? If you will get the model and code date from the bottom of the brewer and contact customer service, we can help resolve your issue. The machine carries a 3 year warranty and if it is 3 years old or less, it will be replaced at no cost. If it is older than 3 years old, then it will be replaced at a reduced price.

Posted on May 19, 2010

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1 Answer

Our Bunn coffee maker has worked great for two years, but all of a sudden when we go to make coffee, the water pours out FAST and not the normal slow drip and the coffee is weak weak weak...we have cleaned...


It sounds like you are missing your sprayhead. If you will call Customer Service at 800-352-2866 with the model we will be able to send you out a new sprayhead.

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I just cleaned my Bunn coffeemaker and now it brews really weak coffee.


Have you checked to make sure the sprayhead is on your sprayhead? If it isn't there, than please call us with your model and date code and we will replace it. The other reason for weak coffee is the thermostat not keeping the water at 200 degrees. If you have a meat or candy thermometer, please check the water temp as it comes out-it should be between 175-185. If it isn't, then we would need to replace the machine. Just call customer service at 800-352-2866 with your model and date code.

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Check the sprayhead, make sure all holes are clear, then check the grind on the coffee it might be too coarse, and also check the amount of coffee being used, you need about 2 to 2.5 ozs.

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I work for BUNN. It sounds like your sprayhead is missing because it should definitely be spraying versus flowing. We will send you out a free sprayhead - please call our customer service department at 1800 - 352-2866 with your model and will send it right out to you.

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It sounds like you may have lost the sprayhead. It is under the brew basket (above the place where you put the basket with the filter and the coffee). Sometimes they get loose and you don't realize it and it can fall in the grounds and get tossed out after brewing.

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