Question about Bunn CWTF 15-3 Coffee Maker

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Bunn CW series slow water flow

Slow water flow

Posted by Anonymous on

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  • Bunn Master
  • 2,236 Answers

Delime the sprayhead and the reservoir drain in the top with a deliming spring or a screwdriver

Posted on Jan 28, 2015

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

EsWorld
  • 1618 Answers

SOURCE: The Bunn CW Series overflows the pot. How canwe

Open the front panel, there is a set of instructions on it, you will have to make sure the board is set to program and not lock, before you adjust.

Posted on Aug 14, 2009

  • 18 Answers

SOURCE: Our Bunn CW series three burner is over filling.

needs service tech to adjust.

(Do it yourselfers can adjust the black knob down from 2.5 to about 2 mins. Digital timers have instructions in back of the front panel. CAUTION!! There is high voltage present. Pull out the plug! Safer to just have it serviced.)

Posted on Feb 10, 2010

EsWorld
  • 1618 Answers

SOURCE: I have a BUNN CW series coffee machine at work.

Descale the tank and replace the water filter on the coffee brewer inlet line.

Posted on May 07, 2010

pgh_pa_guy
  • 2992 Answers

SOURCE: My Bunn coffee filter overflows

If this is a pour-over coffeemaker, you can't do anything about the flow. It's just gravity pushing the water out of the reservoir. But you can try using a coarser grind of coffee. If the grind is too fine (if you grind whole beans for too long in a blade grinder, for instance, or if you're using espresso grind coffee), the water can't flow through quickly enough and it backs up and overflows. Make sure your coffee is ground for a drip coffeemaker.

Posted on Aug 02, 2011

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1 Answer

I have a bunn CW series brewer. I filled the reserve with water and allowed to get hot. I then add additional water (1 glass pot) and it just starts to dispense without me hitting the "start" button. I...


Sounds like the switch is stuck in the operate position. Therefor once the machine hits temperature it just brews. Your local Bunn distributor should be able to recommend an engineer to replace the switch or supply the correct t,hope of switch if your confident enought Tom replace it yourself.

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The brewer is on a gravity feed system, after the initial fill, whatever you put in is what comes out. as for the start button check the water connection on the back, there might be a problem with the solenoid.

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My cw series is a plumbed-in unit. Water flows continuously from the spray head. I think that either (1) the water level sensor is bad (2) the shut off valve is stuck open. Ideas? Can the water level...


The CW series brewers do not have level probes they run strictly on a timer and a solenoid to control the water flow. So, that said, the problem could be the solenoid. If the brewer constantly drips/runs even when the front "ON/OFF" switch is off then it is the solenoid. If the brewing stops with switch off then it is the timer. The timer is located in the panel behind the filter basket on the front of the machine (6 screws) If the brewer has a manual timer set it to about 2 minutes, a good starting point for a pot of water (1/2 gallon). If it stops brewing then you need to fine tune the timer to give you right amount of water for your brewing method. If it doesn't stop... then you will need a new timer. If your brewer does NOT have a "dial/manual" timer follow the instructions on the backside of the panel to "reset" the brew level. If it does not reset you will need a new control board. Hope this helps.

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Some people also try adding fresh grounds to brewed grounds, resulting in an overflow. A restricter valve can be used, but a better solution is to simply pour in half the water at a time. This is what people who buy non Bunn filters do to stop overfills.

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The Bunn CW Series overflows the pot. How canwe


Open the front panel, there is a set of instructions on it, you will have to make sure the board is set to program and not lock, before you adjust.

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