Bunn Coffee Makers & Espresso Machines - Recent Questions, Troubleshooting & Support


Underneath the warming plate is a element assembly that will have 1 or 2 thermal fuses and a temp sensor. If any of these have faulted that condition will arise.
I suspect that the temperature sensor is 'sticking' in the open position. If you remove the bottom cover (while unplugged of course) and lightly tap the sensor with your screwdriver it may remedy the issue for awhile but the initial cause of the problem will still exist. If the brewer is worth it you can replace the sensor otherwise it may just be cheaper to recycle it.

Bunn Coffee... | Answered on Apr 04, 2019


A model number would be nice but since all (drip) coffee makers are generally the same in principle I'd wager it's your temperature sensor (underneath the heating plate) or when you plugged it in voltage escaped through the switch causing the unit to be 'on'. Think of a coffee maker like the first 1/2 of a steam engine. Water from the reservoir gets converted into steam by a burner (also warms the heating plate for the carafe) and instead of the steam driving components it gets condensed above the coffee grounds. Without that temperature sensor the burner would be going 'full blast' all the time and burn your coffee which is why a broken sensor will cause a 'no heat at all' issue while a failing one can give false signals to the control board. I hope this narrows down your issue and good luck!

Bunn Coffee... | Answered on Apr 03, 2019


Google (bunn)(mcr0002182)(manual) without parens.

Bunn Coffee... | Answered on Mar 22, 2019


I have had this happen when I used non bunn filters . perhaps they non bunn are too small thereby letting the water run over the top My bunn takes 3 minutes when it's clean to brew 12 cups .

Bunn Coffee... | Answered on Feb 11, 2019


Clean a Bunn coffee maker once every three months if you have hard water. ... Unplug the Bunn coffee maker from its power source. Verify the brew funnel is in place in the machine, and set the decanter in the unit as if you were going to make coffee. Add 1 quart of white distilled vinegar to the top of the brewer.

Bunn Coffee... | Answered on Feb 02, 2019


DUH AND HOW ELSE WOULD IT WORK .OURS HAS NEVER BEEN TURNED OFF OR UNPLUGGED IN 5 YEARS

Bunn Coffee... | Answered on Jan 20, 2019


no fixing can be done sadly it is just replace it with a new unit

Bunn Coffee... | Answered on Jan 16, 2019


The first thing to do is descale it. Then find where the leak is, but you might find that limescale is causing the leak.

https://www.amazon.com/BUNN-NHBX-B-10-Cup-Velocity-Machine/dp/B007MPFCB8

Bunn Coffee... | Answered on Jan 14, 2019


TIME HAS COME TO CHUCK IT AND REPLACE WITH A NEW UNIT

Bunn Coffee... | Answered on Jan 11, 2019


CHECK THE PRESSURE IN THE PRESS GAUGE
IF THE PRESS IS 2 BAR SO IT MEANS THE HEATING ELEMENT IS WORKING AND AND THE PROBLEM IN STRAINER MAY BE NEED TO CLEAN

Bunn Coffee... | Answered on Nov 03, 2018


I can only suspect the tank has rusted thru. sadly the do not have replacement tanks that we the consumer can replace . timeto bin it and buy new or different type unit

Bunn Coffee... | Answered on Oct 31, 2018


that needs to go back to bunn for a replacement tank, they will likely only charge you for return shipping

Bunn NHB Coffee... | Answered on Oct 31, 2018


Might as well replace it, they don't really repair these.

Bunn Coffee... | Answered on Oct 04, 2018


* Bunn model # for specific solutions.
* Most Pro/Office models have a pre-heated tank.
* Most models (Without Vacation or heater switch) will be heated all the time.
* Care must be taken to keep the inner tank filled.
* Pour cold water into fill tray till water comes out of the brew basket.
* Water will stop coming out of brewer once the tank has been topped off.
* If pot is not able to brew after 20 mins of pre-heating. Then call for service.
* Note; most office and Pro machines used in food establishments are from coffee vendors. The larger machines should be serviced by qualified Bunn service techs.
* Contact your coffee vendor or Bunn service ctr for advice.
Aloha, ukeboy57

Bunn Coffee... | Answered on Sep 05, 2018

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