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My model bunn grx-b stopped working. Checked continuity on tank, fuse on tank, bottom switch, can top switch be at fauLt? If so how do I remove it?

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Posted on Jan 02, 2017

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  • 131 Answers

SOURCE: BUNN Pour-Omatic

Most likely it is your tank heater, but look on the top of the tank heater, because sometimes the wire will burn off the top of the element

Posted on Feb 11, 2009

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FixinFax
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SOURCE: MY Bunn coffee maker GRX leaks .

Complain loudly to Bunn, they fixed mine for free.

Posted on Dec 09, 2009

  • 189 Answers

SOURCE: Bunn GRX-B leaking from bottom

If you will locate the date code on the bottom of the brewer and contact Customer Service, the machine can either be replaced or repaired at not cost or if over 3 years old, at a reduced price.

Posted on May 19, 2010

  • 189 Answers

SOURCE: I need a wiring diagram for a Bunn BX coffee maker

I do apologize but these diagrams are not available. What is the problem with the machine? If you will get the model and code date from the bottom of the brewer and contact customer service, we can help resolve your issue. The machine carries a 3 year warranty and if it is 3 years old or less, it will be replaced at no cost. If it is older than 3 years old, then it will be replaced at a reduced price.

Posted on May 19, 2010

  • 189 Answers

SOURCE: My Bunn has a slow drip. Model GRX-B. Have

How old is the machine? If you have cleaned it and delimed the machine and it still is dripping slow, the machine may need to be replaced. Please call service at 800-352-2866 with the model and date code.

Posted on Oct 20, 2010

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1 Answer

Bunn GRX-B won't heat and yes it is plugged in and vacation switch is on


You said "...turned vacation switch back on". In fact, it should be turned off for normal use.

If that's not the problem, and it's plugged into a GFCI outlet, press the RESET button (do not press the "test" button).

If still no joy, plug something else into that outlet to see if it works. If it doesn't, check the circuit breaker for that outllet.

Jul 14, 2014 | Bunn GRX-B

1 Answer

Will not heat


there is a white felt like tube on the top of the tank after you remove the top you will see this slide it out and replace the 2 microtemp fuses part number g4a01 at 141c. or 285.8 f use 2 of them just like they are in the unit . if too mutch to handle call bunn if under 3 years they will replace whole thing

Apr 17, 2014 | Bunn GRX-B

1 Answer

Is there a current recall on Bunn model GRX-B?


Don't know about a recall, but the most common cause is a bad element.

Jan 22, 2014 | Bunn GRX-B

2 Answers

My Bunn Thermofresh quit heating the water.


The Bun BTX-B has a pair of thermal fuses located on top of the water heater storage unit. If the pot is left without use for a week or so, the thermal fuses will blow if the top of the tank gets too hot (about 150 degrees Fahrenheit) due to the evaporation of water in the storage tank. The operating directions state clearly that if the unit is not going to be used for a few days to turn off the pot. These are there to prevent a fire in case someone does not follow the direction. This is the "MOST" common form of electrical failure in these pots.

To access the thermal fuse
1. Unplug the pot and drain pot by inverting the pot in an empty sink.
2. Remove the two Phillips screws located under the water fill flipper door.
3. Gently insert a small flat blade screw driver into the front top of the lid and remove top cover.
4. Remove the 4 screws inside the water routing tank and remove routing tank simply by lifting off.
5. The thermal fuse is mounted to the top of the tank under a clip and is easily slid out from under the clip. There is a brown wire (goes to power cord neutral) and a black wire (goes into tank disk access hole). Simply measure with a multimeter at lowest ohm setting, the meter should read continuity between the black and brown wires, if it reads an open circuit, the part is bad.

A replacement thermal fuze assembly kit is available off e-bay for about $10. You can buy individual thermal fuzes and replace one of the two that is bad for about $3, but I recommend the kit for most consumers as it comes with wire crimps already mounted and far easier for the average person to simply install. Repair takes about 5-10 minutes.

Mar 03, 2013 | Bunn BTX-B ThermoFresh 10-Cup Home Thermal...

1 Answer

I have an Bunn model GRX-B datecode 304009 that leaks at the bottom, what can be done about it


Most likely cause is that the seal between the water reservoir and the tank is leaking. Not uncommon. If you can find a replacement seal go for it, otherwise the old one can be made serviceable by coating both sides with a thin bead or layer of clear silicone. Allow to cure for 24 hours before powering the coffee maker back up.

Dec 26, 2012 | Bunn CWTF Coffee Makers & Espresso...

1 Answer

The lid to the coffee pot itself is broken .. bunn model GRX-B - can I buy a new lid?


We will be happy to replace that lid free of charge for you. Please call customer service at 800-352-2866 and we will send you one out.

Dec 29, 2010 | Bunn GRX-B

1 Answer

I have a Bunn GRX-B Model Serial # 243908. It is leaking water while brewing at the bottom on the on/off switch side. What is needed to correct this? It is more than 3 years old.


Your brewer is still under the 3 year warranty. If you will call us at customer service at 800-352-2866 we will be happy to send you out a new machine.

Dec 09, 2010 | Bunn GRX-B

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