Cuisinart Supreme Grind DBM-8 Electric Burr Grinder Logo
Posted on Feb 07, 2011
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When grinding coffee beans the grinder is not dropping the beans into the grinder part. I have to stay and shake or bang the grinder on counter to get the beans to fall through.

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Sulejman Sulejmani

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  • Expert 138 Answers
  • Posted on Feb 08, 2011
Sulejman Sulejmani
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Joined: Mar 26, 2009
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You must screw off the burr holder plate screw (in center) you will order one special screw, drill shaped, when the burrs roll it will mix and take down the coffee beans. That is solution i applied to many grinders. PS: beware the direction of burrs must be coordinated with new screw.

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Grinder stalls constantly (motor whirring, but no grinding happening) so I shake it to get it grinding again, but the whirring/no grinding happens over and over. I have to shake the think 5 or 6 times to...

As I can see, what happens is that some coffee grains stucks in the way from the upper pot to the grinding wheel. This is not something usual, but possible if coffee grains are too big and are placed across the entry of the mill. Try cleaning more deep with some old toothbrush. Look for a clean and even surface of the duct.
Other cause might be a loosen mill hub/grinding wheel off the motor shaft, which would require dissassemble of the appliance to be repaired.
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Hi Sounds like you have a blockage in you grind passage. Try removing the brew group. Then inside on the roof of the machine where the brew unit was setting there is a drop chute where the coffee is dropped into the brew unit. From the left side of the drop chute pull down and back, and it will drop coffee. This will clear an opening that relieves pressure on the passage. There is a passage inside the drop chute area that goes to the grinder. Vacuum it out. It will be on the right side of the drop chute. Once that is cleared go to the bean hopper. There is a lever under the bean hopper. Push the lever back to the largest number. You can push the lever to a larger number any time, but it has to be grinding to pull to a smaller number. Now replace everything and make your coffee. Once you have made your coffee you can pull back to a number that was higher than the one you had it on, but only when the grinder is running.
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Rotate the bean hopper counter clockwise until it stops. Lift it off. Remove the outer burr with the 2 wings and clean under the burr. Clean the opening going to the chute for ground coffee(inside where the burr was).
Install the outer burr. Install the bean hopper. Rotate the bean hopper to the French press grind (coarsest) and operate the grinder. This will clean the burrs and the passages. If it starts to clog, repeat the last part to clean the burrs and passage. It must be grinding to go to a finer setting, but you can go to a coarser setting any time. Another thing. Turn the grinder upside down (empty) and rotate the bean hopper back and forth to clean the threads of the adjusting burr..
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This fixes almost all the "beans will not feed or beans will not grind" problems caused by coffee bean dust packed in the burrs. Oily beans cause this problem more fequently.
a. Pour all the beans out the top.
b. Open the settings up all the way and see what else can be poured out. Use your shop vacuum to **** grounds out the spout and backward out the bean bin.
c. Pour in some instant rice and start grinding. Reduce the grind to a small setting like six and then open the settings all the way again. (The grinder will not start at a low setting with the rice in it. If you let it stop, open the settings to about 16 before trying to restart.)
d. Pour out the rice and vacuum out the ground rice.
e. Adjust the grinder to your favorite setting and try a coffee grind. Grind until most of the rice dust is expelled (any remaining trace of rice dust will not affect the flavor of the coffee).

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Coffee beans don't grind even though there are beans in the hopper. Message: empty coffee beans. Grinder turns, but doesn't sound like the beans are going through.

Sounds like you have a blockage in you grind passage. Try removing the brew group. Then inside on the roof of the machine where the brew unit was setting there is a drop chute where the coffee is dropped into the brew unit. From the left side of the drop chute pull down and back, and it will drop coffee. This will clear an opening that relieves pressure on the passage. There is a passage inside the drop chute area that goes to the grinder. Vacuum it out. It will be on the right side of the drop chute.
Once that is cleared go to the bean hopper. There is a lever on the right side of the bean hopper. Push the lever back to the largest number. You can push the lever to a larger number any time but it has to be grinding to pull to a smaller number. Now replace everything and make your coffee. Once you have made your coffee you can pull back to a number that was higher than the one you had it on, but only when the grinder is running.

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All of sudden my grinder plugs up. coffee settles in around the base of the burr and does not seem to fall into the grind bucket, so the machine still runs but grinding basically stops as no more more...

This fixes almost all the "beans will not feed or beans will not grind" problems caused by coffee bean dust packed in the burrs. Oily beans cause this problem more fequently.
a. Pour all the beans out the top.
b. Open the settings up all the way and see what else can be poured out. Use your shop vacuum to **** grounds out the spout and backward out the bean bin.
c. Pour in some instant rice and start grinding. Reduce the grind to a small setting like six and then open the settings all the way again. (The grinder will not start at a low setting with the rice in it. If you let it stop, open the settings to about 16 before trying to restart.)
d. Pour out the rice and vacuum out the ground rice.
e. Adjust the grinder to your favorite setting and try a coffee grind. Grind until most of the rice dust is expelled (any remaining trace of rice dust will not affect the flavor of the coffee).
2helpful
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Hello. grinder won't grind

HI
Sounds like you have a blockage in you grind passage. Try removing the brew group. Then inside the machine where the brew unit was setting there is a drop chute where the coffee is dropped into the brew unit. This will be above where the brew unit was. From the left side of the drop chute pull down and back, and it will drop coffee. This will clear an opening that relieves pressure on the passage. There is a passage inside the drop chute area that goes to the grinder. Vacuum it out. It will be on the right side of the drop chute.
Once that is cleared go to the bean hopper. There are 2 knobs in the bean hopper. Turn the large knob to the largest number. You can turn the knob to a larger number any time but it has to be grinding to turn to a smaller number. Now replace everything and make your coffee. Once you have made your coffee you can turn the knob back to a number that was higher than the one you had it on, but only when the grinder is running.

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Sound like it's choked up with grounds and oil. Burrs may also be blunt. U need to dismantle and clean/ check burrs, passages and body. If you can see "flats" on the burrs or they feel not sharp when you check with finger, they should be replaced.
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