Question about Bunn Coffee Makers & Espresso Machines

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I completely cleaned my bunn and ran cold water through it several times when it was unplugged. Shortly after plugging it in to heat up the water tank again (and without adding more water), it began leaking out the top and dripping through the spray head into the coffee pot. It was doing this before cleaning as well, which is why we cleaned in the first place. Any idea why heat or electric would cause this problem when it was fine before being plugged in?

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  • 182 Answers

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!

Posted on Apr 03, 2019

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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  • 667 Answers

SOURCE: I forgot to place my coffee filter back in the coffee maker

Just an idea, but you could use a turkey baster to remove some of the water first. I doubt if you've harmed the coffee maker.

Posted on Jan 11, 2008

  • 131 Answers

SOURCE: bunn commercial coffee maker plug overheats, no hot water

Most likely this is your heating element, but it could also be your main thermostat

Posted on Feb 13, 2009

cactus bob
  • 267 Answers

SOURCE: Coffee pot

durabrand has no contacts outside china this is a unit made for and imported for walmart only walmart is the only contact ...... your problem is not anything you or walmart can do anything about the problem is the cheap plastic that is used , when it gets hot some people can taste and smell it and others cant . .. its getting more common in everthing that heats water .. personaly i would not drink anything from an appliance that puts a plastic taste in my water ..... if you move up in price the problem is reduced , better plastics are used , but your not going to get one for 10.00 ! "you get what you pay for " more now than ever .... good luck Please if this answer helped , please rate this 3 or 4 stars . and keep me in the paid answer department . A 1 or 2 may knock me down into the unpaid ranks. Thanks Cactus Bob

Posted on Mar 05, 2009

  • 2 Answers

SOURCE: water wont come out of my bunn coffee maker

The first pot of water you put in the coffee maker just fills the water tank which is then heated up , once it gets to temperature you then pour second pot of water this pushes the hot water out of the tank through the coffee grounds into the waiting pot. This way you can make coffee faster than a regular coffee maker.

Posted on Jul 19, 2009

  • 1 Answer

SOURCE: The cleaning button keeps flashing after cleaning.

We have this problem as well. We simply clean it as directed once or twice with the vinegar and water mix and then unplug for an hour. This resets our machine for several weeks. Based on the number of comments I've seen on this issue, it seems that the "off" sensor doesn't work.

Posted on Oct 13, 2009

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My friend gave me a Bunn thermal home coffee maker and I don't know how to make it work and can't seem to find directions on line?


Depending on which maker and how old it is it may have a switch for the heating element. The BUNN brewers have a reservoir inside that needs to be topped off BEFORE energizing the heating element/plugging it in. This usually will require about 3 pots being poured through until water starts to flow from the filter basket. (Have a pot in place to catch the water) Then it is safe to plug in your machine. After it heats up (about 20 minutes) you can load your grounds and pour through a pot of COLD water and voila... coffee.
Also, due to the reservoir you will want to not shut off or unplug your brewer... then it will be ready to brew next time.

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When i make coffee sometimes the water that comes out is cold or luke warm


The brewer has not had enough time to reach its operating temp (usually 7 mins after a brew cycle). If that is not hte case then the machine needs to be descaled.

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My tim hortons coffee maker is not brewing as quickly..s there a wayto clean it


Make a 1/2 pot 50/50 mixture of cold water and white vinegar then run it through the machine in normal brewing fashion. Place a clean filter in the brewing cup to catch the white deposits that are removed. Allow the mixture to cool, then repeat the process several times while using the same filter. Finally, run several pots of fresh water through to work out the taste of the vinegar. Repeat whenever the brewing time seems to be excessive.

Feb 02, 2010 | Bunn Pour-Omatic Coffeemaker, 10 Cup White

1 Answer

Our office is relocating and I need to prepare our Bunn coffee maker to be moved. It appears to be working fine now, but we do live in a hard-water area. So: - Obviously we will be unplugging it. Can it be...


I work for BUNN. Yes, you can empty it - here's a link to instructions http://www.bunn.com/retail/service/faq.html#faq6

Also, it's absolutely a perfect time to do the Periodic Cleaning of your brewer - here's a link to instructions for using vinegar to thoroughly clean your brewer. http://www.bunn.com/retail/service/cleaning.html

If you want to move the brewer without draining, please be sure to unplug it and let the water cool for about 6 hours before moving it (the water inside is 200 degrees). Then, when you get to the new location you can just plug it in and let it heat up.

Any other questions, please let me know. lisa.mccloud@bunn.com

Feb 01, 2010 | Bunn GR10 Coffee Maker

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My bunn coffee maker is making loud noises when it heats, I know it needs cleaning but I lost the book that tells me what to put into it. I did it once and it was quiet. I can't find that book now. Thank...


The noise can occur when there is a heavy buildup of calcium on the heater coil. This causes the coil to get much hotter since the layer of calcium acts as an insulator and the water may come to a boil because the coil rises to a high temperature trying to heat the water.
Unless it is too clogged, this may help; empty the water out completely, then put two cups of regular vinegar in the water chamber and turn on the power for a half-minute or until liquid appears in the pot.
Let it sit overnight and then let the remaining vinegar pump through. You will have to run several pots of water through the machine or have some really strange-tasting coffee.
There are commercial products that act more quickly and thoroughly than vinegar but also much more caustic.

Nov 18, 2009 | Bunn Coffee Makers & Espresso Machines

1 Answer

I haveBX-B . I had the pot set up for me to push the on button for Monday Morning, but the water ran throug and it was not on.So now I have cold coffee in the Decanter.


The Bunn coffee maker does not operate as most coffee makes do. You cannot leave the Bunn in the off position and then just flip the switch to on and pour the water in. You will always get cold coffee if you do this. It takes time for it to heat the water. The On/Off switch should be left in the On position all the time. This keeps the water hot in the tank, thus providing hot water when you need to make coffee. You then just pour the cold water in the top, shut the lid, and have a pot of coffee in 3 minutes. The On/Off switch is a vacation switch, and you use it only when you are not going to use the coffee maker for a couple of days. Older Bunn coffee makers did not even have an On/Off button. You simply unplugged them when going on vacation. So turn the switch to the On position and leave it there. The unit will then work as designed. Forget how other coffee makers work, this is a Bunn and it is the fastest coffee maker you can buy and must be left on all the time. that way the water stays hot and the unit will keep it that way.

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Hi! I got a new Bunn VPR last week but did not run water through it because I was waiting for our maintenance guy to install a GTRI outlet for it. When he installed the outlet on Saturday he plugged in...


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Sep 22, 2009 | Bunn VPR Coffee Maker

1 Answer

Coffe first pot is hot after that they are cold


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Jan 20, 2009 | Bunn GR10 Coffee Maker

1 Answer

Bunn coffee maker


It sounds like you have a pour over model and the problem is the tank isn't full. Turn the machine off (or unplug it). Put a pot on the warmer like you are going to brew coffee. Pour clean cold water into the top until it starts coming out the sprayhead (above where the coffee grounds go). Now plug it in and turn on. Let it heat up then you can brew.

The way your machine works is that there is always about 2-1/2 pots of water in the tank. The water you pour in to make coffee is actually pushing the hot water in the tank out. So, if you don't fill the tank before using it, you may be hurting the heating element since it isn't totally submerged in water.

Oct 12, 2008 | Bunn NHB Coffee Maker

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