20 Most Recent Bunn -o-Matic G3 (3 lb. Commercial Coffee Grinder) Questions & Answers

Look on the right side of the grinder, there is little cover. Pop the cover off and press the reset button.

You should call your vendor for service. *** The following is for information only. Service should be done by a qualified tech.*** * Check bunn.com for a free download of the G3 manual * If turning the dial does not change the grind size then the inner burr spring is broken, stuck, of missing (it broke into small pieces to fall into someone's coffee grounds). Call vendor for service. * If turning dial is very loose then the lock screw is loose. check setting then tighten down to lock into place. It's usually a small 1/4" hole on the side of the knob. * The burr plate may be gummed up and stuck in place. Especially if oily beans or 'flavored' beans were ground in this machine often. * It's possible the Grinder is WAY out of calibration. It's so far out of adjustment that the only setting is fine when the dial is set on course ground. This grinder was not assemble correctly. Check the parts diagram. Call your vendor for service. Aloha, ukeboy57

Bunn G9 Retail grinder usually has a large "Chaff" plate located inside the top portion of the discharge port. There is usually a handle connected to this plate to allow the last bit of grounds to fall out of the chute. It looks like a 'trap door' that swings open and close. You will need to replace it if it's missing. * Some places use a bag clip to attach a coffee bag to the chute so all the grounds can drop into the bag. This clip (with a small metal chain attached) also helps with the static electricity. Aloha, ukeboy57

BUNN G-3 IS A RETAIL COFFEE GRINDER and You are talking about a COFFEE BREWER Any way

It sounds like a bad thermostat and needs to be replaced.

You will have to dismantle the grinder, removing the 2 bolts at front, then working your way back to the grind chamber, You can find the diagrams for the machine on bunn.com

I believe the "hard piece of plastic" is cover for the reset button. You should be able to pry it off simply and try the button.

It would be easier to pick up the manual in the commercial section under products from bunn.com, rather than me explaining it.
You have to loosen the nut on the adjustment wheel, then pull out slightly and turn towards coarse a few numbers, then push back in and turn grinder on and slowly turn toward fine, until the burrs slightly touch, you will hear a little metal on metal, at that point turn the grinder off, back off about slightly, then pull out adjuster and turn it to Turkish and tighten screw.

probably not but it might damage itself

That one is hard to explain but I will try. On the front of the grinder is the adjustment wheel, on the wheel is a small screw, if you put your hand on the wheel it might be about 1/4 inch from the front, back up screw about 1/2 turn or more then make sure the grinder is on 3 or espresso, make sure you can pull out front part of the wheel ONLY. If not back up screw a little more and try again, now that it can move freely without moving the numbers, pull it out and turn it to about 5 or 6 then turn grinder on and very SLOWLY, (This is the dangerous part do not go to fast or you could damage the grinder) turn towards trukish grind when you get close you will hear the burrs slightly touching. Back off the knob a little just before the touching part and turn grinder off. Then pull knob out and turn it to turkish and set screw.

Remove left side panel access then rotate control on desired solenoid, clockwise to decrease counter clockwise to increase.

It is possible that the relay, or the micro switches on the grinder are defective.

You will need a manual that has all the instructions for your machine, as this is too long a subject to answer here. The manual for your machine can be found at: http://www.bunn.com/pages/techdocs/manuals/grind.html

Somewhere inside you should find a small rotary thermostat. Also make sure the heating element is completely clean by using a quality descaler like CLR. A lot of people use white vinegar but it is not that effective on coffee makers. Make sure the heating element under the carafe is working, because that is heating up as the coffee is brewing. ..

Question edited for clarity and toss in a load of CAPS. It is dated with a non intuitive, none readable code. You can see examples here. Where is my Date Code? BACK OF BREWER Sticker on the lower back of brewer BOTTOM OF BREWER Sticker attached to the bottom baseplate of your brewer. Note: Allow water in tank to cool. Drain water before turning over.

Where is my Date Code? - BUNN

More here https://www.google.com/search?q=Bunn-o-Matic+HB+coffee+maker+read+the+date+code ..

unplug machine and turn upside down and pour out coffee and water mix (if water was in reservoir) If necessary turn over and fill will water and repeat.

Replace and run a pot of clean water thru it.

To locate the date code on your BUNN BT Velocity brewer, you can try the following:

1. Check the bottom or back of the brewer: Look for a label or sticker on the bottom or back of the machine. The date code is typically printed on this label.
2. Inspect the sides or inside the brewer: In some cases, the date code may be located on the sides or inside the brewer. You may need to remove any panels or covers to access the label or sticker.
3. Consult the user manual: If you have the user manual for your BUNN BT Velocity brewer, it may provide information on where to find the date code. Refer to the manual for specific instructions or contact BUNN customer support for assistance.

If you are still unable to locate the date code on your brewer, I recommend reaching out to BUNN customer support directly. They will be able to provide you with accurate information and guide you in finding the date code on your specific model of the BT Velocity brewer.

Normally that would be an easy fix if the water just continued to flow. You just replace the water inlet valve and they can stick open or partially open. But you say if you power off, the flow stops. That sounds like the control board is supplying residual power to it. Control boards are expensive so I would call for service. Or you can try some of the fixes here. https://www.google.com/search?q=bunn+coffee+maker+cwtf15+replacement+water+inlet+valve More here https://www.google.com/search?q=bunn+coffee+maker+cwtf15+water+not+shutting+off ..

shorted water heater element