Why wont my bunn grx-b fill the pot with water when i close the lid? I have filled the resevoir with water and yes it is plugged in and turned on.

We will be happy to replace that lid free of charge for you. Please call customer service at 800-352-2866 and we will send you one out.

It takes 2 full decanters to fill the tank. You fill the tank with 1 full decanter of water and pour it into the top and close the lid-wait 3 minutes. Then fill the decanter again and pour it into the machine and close the lid. Plug it in and wait 15 minutes for the water to heat it up. Then you will be ready to brew coffee. You will pour in 4-10 cups of water at the top and have your filter basket ready with filter and grounds. In 3 minutes, you will have your coffee. If you have any questions, please call customer service at 800-352-2866.

With the machine full of water and still turned on, pour in 1 qt of white vinegar into the top and place decanter on base and close the lid. You will let this sit in the machine for 2 hours. At the end of 2 hours, flush out the vinegar with 8-10 decanters of water.

It sounds like the tank isn't full. It takes 2 full decanters of water to fill the tank in the bank. After pouring in 10 cups of water, close the lid and wait 3 min. Then open up the lid and pour in another 10 cups of water and close the lid. Then turn the vacation switch on and wait 15 min. Now you are ready to brew coffee. Place your grounds and filter in the funnel basket and pour in 4-10 cups of cold water and place decanter on warmer plate. Close the lid and in 3 min you will have a pot of coffee. If this doesn't happen, please call 800-352-2866 and we will be happy to assist you.

You may not have enough water in the tank.
Follow these steps

1. With the coffee pot unplugged, fill your resevoir/tank until water begins pouring out of your sprayhead and brew basket.
2. Wait for the water to finish dripping then plug in your Bunn.
3. Let your Bunn warm up for at least 8 minutes.
4. Run a test cycle with clean water, remembering to use the water pitcher provided for this purpose, while leaving your empty pot on the burner beneath the brew basket.
5. If your cycle completed, and your coffee pot is filled to the desired level you are ready to make coffee.

Remember that these Bunn models have no water filter installed, so, the cleaner the water the better tasting the coffee.

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

www.kaldi.com

If you just bought this brewer, ask your retailer if they will replace it. if not, you can get ahold of the bunn warranty department in your country. they will give you instructions on getting a replacement. This brewer has a dead short in it.

This coffee maker uses a resevoir tank system - the water you pour in pushes out water that is already heated - the water you pour in won't actually be used for that pot of coffee! For that reason you should only use full pitchers when filling. You may need to cycle through 2 or 3 fillings before the input matches the output once more. The capacity of the resevoir is about 3 pitchers; you can brew 2 pots in a row before the machine needs a break to bring the resevoir back up to temperature.

The easiest way to empty these brewers is to turn them upside down over the sink. Turn it on it's side, always keeping the fill hole down toward the sink, and keep on going until you have the unit completely upside down. If there is a push switch under the lid to stop water from going into the pot until the lid is closed, you will have to keep this pushed in until the unit is empty

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.