Question about Bunn NHB Coffee Maker

1 Answer

I have had my Bunn since 1999 and I have had no trouble whatsoever until today, it decided to become a steam roller and will not shut off at the reserve hot water well. I have to power off the switch each time I make a pot of coffee as the coffee making process still works.

Posted by mdpostma on


1 Answer


  • Level 1:

    An expert who has achieved level 1.


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Contributor
  • 40 Answers

It is most likely time to decalcify the machine. If you haven't made a regular practice of this, a cocoon of mineral deposits has encased the heating element causing it to struggle to warm the water adequately even as it overheats itself. If one or more decalcifications using white vinegar and the instructions in your owner's guide fail to improve the situation, the thermostat may be faulty. Contact BUNN for toll-free support:

Posted on Mar 05, 2010


Add Your Answer


Uploading: 0%


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



Related Questions:

1 Answer

How to stop a steam iron from spitting and spluttering from out of the filling hole with its lid shut.

if you have had enough of the problem junk it and get a new one
it will not be cost effective to repair any way

Jun 15, 2016 | Irons

1 Answer

Why is my 99 dodge intrepid steaming after warm up then cuts off til cool

Which engine, 2.7L?? Is it full of coolant?? If the water pump has failed, it a pretty expensive repair.

Aug 10, 2014 | 1999 Dodge Intrepid

1 Answer

Won't shut off after making a cup

It sounds like the thermostat or Element is failing and causing your unit to overheat and boil. Probably time to call Bunn and see if your unit is under warrenty.

May 03, 2014 | Bunn My Cafe MCP

1 Answer

Boiler will not cycle, w/not shut off


Maybe this will help you, with information, trouble shooting and contact numbers.


Also if you could rate this and some kind words would be great. Also here is my direct link to my pages of expertize that might help you. Visit me anytime at :

Thanks So Much, Mike

Jul 22, 2011 | Bunn VPR Coffee Maker

1 Answer

Have had my Bunn Home Coffee Maker for 2 years and it's worked like a charm! Unfortunately it has decided to go retire with no warning whatsoever :-( It just out of nowhere stopped working all...

Tools needed to dignose
An screw driver and an AC electric tester.
open the pannel and chek the voltake is comming into the machine first.

reply me after that

Feb 09, 2011 | Bunn 10 Cup Home Coffee Brewer

1 Answer

Bunn vpr steams everything out fill hole and nothing comes through copper tube, even after cleaning tube and head.

Fill water tank until water comes out from sprayhead, THEN plug it in it should be OK.

IF the machine keeps blowing steam/keeps boiling the water, The thermostat is defective and must be replaced.

NOTE: If you don't use the machine for a couple days, UNPLUG IT. The water will evaporate if you don't unplug it.

Jan 13, 2011 | Bunn VPR Coffee Maker

1 Answer

I bought my steam mop in February 2009 and had no trouble with it until today when it would not put out steam. It made a gurgling sound, but emitted no steam.


Here is a tip that I wrote about the Euro-Pro Shark Steam Mop and why it may not be getting steam to the head...

Euro-Pro Shark Steam Mop Problem

Here also is a link to get any of the Shark Manuals that you need.



Nov 11, 2010 | Euro-Pro Shark Steam Mop - Gray/ Purple...

1 Answer

Neon won't start

It's the starter i had the same problem once with a car and i had to replace the starter

Oct 19, 2008 | 1999 Plymouth Neon

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

185 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bunn Coffee Makers & Espresso Machines Experts

Kelley Hopper

Level 2 Expert

67 Answers


Level 3 Expert

3063 Answers


Level 3 Expert

85239 Answers

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

Answer questions

Manuals & User Guides