Water supply for Bunn coffee maker

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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You should check to insure that the tank inside the machine is full of water. Pour in 1 pot of water at a time until you get water to come out of the brew basket. If you haven't done any internal damage it should be ready to brew a pot of coffee inabout 20 minutes.

Check programming.This is very simple;turn switch on and hold brew switch until you here 3 clicks to start brew timer .When desired level is reached turn off on/off switch on front panel to set brew time.Check brew level now.

Measure the amount of water in the decanter your using.Find another coffee pot to use.Make sure to use your de-liming spring.

If you pour water into the machine, and water comes out, then the reservoir is full of water. There is no way the water can bypass the reservoir and go directly into the pot.

Please get the model and date code located on the bottom of the brewer. The machine has a 3 year limited warranty. If the machine is 3 years or less, the machine will be replaced at no cost. If it is over 3 years, then it can be replaced at a reduced cost.

You can download a use and care manual:
http://bunn.com/pdfs/retail/usecare/38863.0000_BX_GR_UC_English.pdf

www.kaldi.com

Are you rapid firing your coffee maker?Not designed to do that.. If the water heated that fast it would boil dry if you ever left it unattended and on. The reservoir is heated with the time it takes to drink a full pot taken into consideration for reheating.. If you are serving 20 cups with a 10 cup machine, Expect a delay, especially if you are refilling with cold tap water. Sorry.

I obtained Bunn washer seal repair kit from buy-it-now-store.com for $6 plus $7 S&H and it solved the problem.