The coffee maker over flows with coffee - Bunn CWTF35-3- Stainless Steel

Normally that would be an easy fix if the water just continued to flow. You just replace the water inlet valve and they can stick open or partially open. But you say if you power off, the flow stops. That sounds like the control board is supplying residual power to it. Control boards are expensive so I would call for service. Or you can try some of the fixes here.

https://www.google.com/search?q=bunn+coffee+maker+cwtf15+replacement+water+inlet+valve

More here

https://www.google.com/search?q=bunn+coffee+maker+cwtf15+water+not+shutting+off

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During the first few seconds of pump running there is zero water flow. Either there really is no flow at all OR the flow meter is not detecting flow for some reason.

Hi, Your coffee is ground too coarse. Make the grind finer as this will slow down the flow rate. If you go too fine it will just dribble and over extract the coffee."bitter". Dazza REPAIRER

Hi, The bottom needle is plugged.... this causes the water to flow back up out the top of the cup rather then flowing through the cup...

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

Hi,

Here is a tip that I wrote that will give you some things to try that will help you get your Keurig coffee brewer working again.

Keurig Coffee Brewer not making a full cup of Coffee

heatman101


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Remove sprayhead and pour water into tank until it flows from the brew tube, then replace sprayhead and brew coffee.

There could be a buildup of minerals in the flow path of the coffee, or there could be bad seals, or there is some corrosion along the flow path.

With some investigation an experienced service person who is familiar with these coffee machines should be able to figure this out.

Jerry G.

Check to make sure the quantity button has not been reprogrammed. To do so, push and hold the coffee button until coffee flows through. Also be sure to check the brew-unit. In some cases if the b-unit is plugged, it will not allow water to flow through. Also check to be sure you are not grinding too fine, if coffee is too fine it too will plug the chamber...........Hope it helps.

Steven,
[email protected]

How to Repair a Coffee Maker
http://home.howstuffworks.com/how-to-repair-small-appliances3.htm

Adjust the grind on the machine.