Question about Bunn NHB Coffee Maker

1 Answer

Premature dripping The coffee begins to drip before I shut the lid. Is something wrong?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 625 Answers
Re: premature dripping

No, the water level in the tank goes up and out the siphon tube. you have about ten seconds before the machine starts to brew a pot.

Posted on Oct 07, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Just dribbling, not filling up with coffee

If the coffee is flowing over the top and not going through the filter holder. into the flask below, check that there is no blockage under the filter holder or if fitted ensure the anti drip under the filter is open this is usually activated by the lid on the flask, which presses this open to allow coffee to fill the flask, when fitted, then to stop the coffee dripping onto the the hot plate below when removed. so ensure any lid for the flask is fitted and that the flask is in correct position on the hotplate to allow coffee to flow through.

I hope this was helpful.

Apr 04, 2015 | Coffee Makers & Espresso Machines

3 Answers

Why does coffee come out while pouring in water its a bunn 10 cup coffee maker

The Bunn has a little stopper that closes the water drain port in the reservoir while the lid is open. You can see a little white plastic pin protruding up out of the grate with the lid open. When you close the lid, it pushes on that pin which causes the stopper to lift off the drain port, allowing the water in the reservoir to enter the heating tank.

If water is entering the coffee basket BEFORE the lid is closed, then something is wrong with that little stopper. It may have a chunk of debris on it preventing it from sealing, or it may be deteriorated, torn, disconnected, etc.

Only way to know is to remove the the screws in the grate and pull the top off exposing the reservoir, and the stopper assembly. The little plastic flapper disc should be seated in the reservoir drain port. It should be relatively flat (not wrinkled) and covering the drain port completely. Test it by pouring some water into the reservoir. If it drains out without you activating the stopper, then a repair is needed.

Move the lever up and down and check its operation. The arm must move freely and close when released. There should be no dirt or debris on the sealing surface of the flapper nor on the sealing surface of the drain port. Gently clean with vinegar as necessary. If the seal is damaged, then a replacement is required.

Nov 29, 2014 | Bunn 10 Cup Home Coffee Brewer

1 Answer

Coffeepot won't drip

Ensure the lid is on the pot as it pushes up a plunger to allow the coffee to drip when it it properly seated under the filter assembly.

Apr 16, 2014 | Coffee Makers & Espresso Machines

1 Answer

The plastic top of the glass pot on two coffee makers drip.

This is a design flaw and can be corrected by enlarging the lid spout. First remove the plastic lid. Then use a fine grinder or sandpaper to remove approximately 1/8 inch of plastic from the lid spout. Follow the exact same contour of the oval spout. However, do not take off so much material that you disturb the small plastic tabs that hold the lid to the pot. Finish by slightly rounding the edges where the material was removed with fine sandpaper. No leaks - no drips.

Apr 26, 2009 | Cuisinart DCC-1200 Coffee Maker

1 Answer

Broken Krups FMF5-14 Stainless Steel 10-Cup Coffee Maker?

My Krups was not working after I accidentally forgot to place the black plastic lid on the coffee carafe BEFORE starting to brew a new batch of coffee. The coffee will not drip into the carafe without the lid
in place. Because the lid is hidden when placed in the coffee maker, it's easy to forget! The coffee all backed up in the filter area and overflowed. The display got wet. Not good.....

If your buttons and or display is not working ( mine got wet with coffee) simply flip the coffee maker over. Unscrew the bottom. expose the display circuit board carefully, DRY it with a HAIR DRYER and put the unit back together! Presto! Mine is working again.

If you need a new circuit board, you can get one for $35 from I found. They also have the Duo filter and extra parts cheaper than the Krups website.

Feb 22, 2009 | Krups FMF5-14 Stainless Steel 10-Cup...

1 Answer

Cuisinart DCC-240 drip lid came apart, how to reassemble?

You may not be able to put it back on, in case you can't it is no bigee, all this does is prevent coffee from running everywhere if you remove the pot before the maker is finished making coffee.

Wait for it to be done and you will just have just a drip or two.

Feb 08, 2009 | Cuisinart DCC-240 Coffee Maker

2 Answers


The Bunn coffee machine has an internal tank used for holding approx three potfulls of water at just below brewing temperature. When you add water for a potful, the thermostat senses cold water and starts the brew heater. The water level inside the tank comes up and goes through the sprayhead. This "surge" of water, that you call drips is normal. The hot water stratifies to the top of the tank, just like an electric water tank in a house. The internal pot heater kicks in and boils the water already in the tank, raising the water level in the siphon pipe to the sprayhead until the reservoir under the add water opening is empty.

Sep 15, 2007 | Bunn NHB Coffee Maker

1 Answer


Is the burner hot when this occurs?

Sep 14, 2007 | Bunn A10 Coffee Maker

1 Answer

Bunn coffee maker

Is the burner hot while your pouring water in?

Sep 14, 2007 | Bunn NHB Coffee Maker

Not finding what you are looking for?
Bunn NHB Coffee Maker Logo

Related Topics:

81 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bunn Coffee Makers & Espresso Machines Experts

Ernest R
Ernest R

Level 3 Expert

1618 Answers

Kelley Hopper

Level 2 Expert

57 Answers


Level 3 Expert

2963 Answers

Are you a Bunn Coffee Maker and Espresso Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides