20 Most Recent Bunn 37600.0000 Questions & Answers


Couple of ideas.

Your weak coffee could be due to the machine not getting hot enough, which is usually caused by calcium scale buildup on the heating element (the "burner").

Try descaling with a citric-acid based cleaner, such as Dezcal or Durgol.

The second is the coffee your using is a weak blend. Try changing to a different coffee and see if the strength is better.

Bunn Coffee... | Answered on Jul 15, 2019


This sounds like the light flickering rather than a faulty connection. You can check for a bad connection by tuning a nearby radio receiver to no station in the AM band. If there is a bad connection causing this you'll hear the sparking (in time with the flickering) on the radio.
Flickering is a common effect seen with neon indicator lights when they age and does not affect the switch function at all, so can be safely ignored.

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


The water inlet valve may be stuck open from mineral deposits. You can get rebuild kits for the older ones or just replace the valve?

Bunn Coffee... | Answered on May 01, 2019


If all passages are not plugged up it should flow through with or without heat in the tank.

Bunn Coffee... | Answered on Apr 27, 2019


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 Apr 27, 2019


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

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