Tip & How-To about Cuisinart Supreme Grind DBM-8 Electric Burr Grinder

If it doesn't work, it may be the On/Off switch.

I have had this grinder for a number of years. About 3 years ago we moved and upon arrival I plugged it in, loaded some beans and pressed the on button - Nothing. Now I know a little bit about these things & I was sure it was not the motor. I completely disassembled the Burr Grinder. It comes apart by removing the rubber feet on the bottom, then removing the screws under the feet. The top part comes apart by removing the screw from the 4 corners (it is easiest if you remove the timer board first). You need a long Philips screwdriver. Before you do this, make sure you are comfortable messing with electronics etc. The last screw to remove the top is under the grind catcher area directly underneath the timer rheostat. Once I had the top off, there is a small circuit board with the timer rheostat (a liner rheostat, not circular) and the On/Off switch. I measured the resistance of the On/Off switch and there was no difference when I pressed the button, obviously a bad switch. The switch is a small, about0.170" thick switch. I was able to find a switch at Radio Shack that was actually the same except it was thinner. I unsoldered the old switch and found a little piece of solid rubber used for gluing on the bottom of something you don't want marred. It was about 0.95", so it raised the new switch up just enough to make contact with the button on the lid when it was pressed. Attached wires to the new switch, soldered it in, put it back together,and fired it up. Works like a charm.

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my mazzer coffee grinder brings out medium to almost a whole bean grinds ,,,am trying to get a fine grind(for the espresso) but it's not working ,,, i've tried to move the scale to all the numbers but the bigger the grind of the beans please help me with this ,,i need fine coffe


Lets do this, remove the bean hopper, and make sure there are no beans in the burr chamber. Then looking down at the collar with the numbers back up screw if there is one on it. Now if memory serves me right clockwise is coarse and counter is fine. Look down in the burr chamber, notice the nut in the middle, turn it with your fingers that will move the bottom burr, if burr turns freely we will move on if not plug in grinder and let it grind out remaining beans. With beans gone unplug grinder, then turn collar towards fine until you cannot go no more, now try turning nut it will be hard if not impossible to move, turn collar towards coarse until you can barely move bottom burr with fingers, you will hear and feel the burrs touching, that will be our bottom setting. Now pick a spot on the grinder you can use the small notch in the middle, count out 16 notches towards coarse and turn collar to that point. Use the notches around the collar not the ones on the top next to the numbers. Your grind should be almost perfect, depending on blend and machine you might have to adjust 1 notch to the left or right after testing.

Aug 11, 2010 | Mazzer Coffee-grinder SUPER JOLLY Electric

3 Answers

Jura E8 beans will not pass through grinder resulting in "Fill Beans" error message. Saw reference to Kaffeestudio.com for dissasembly instructions but that link no longer works. I assume that the chute to the pressing chamber is clogged as grinder motor runs and feed auger rotates. Have tried to clear through the powdered coffee chute to no avail. Expect that minor disassembly is due but Jura has done an excellent job of discouraging that. Need some inside scoop on how to take cover off. The exposed Torx screws are only a feeble start.


It seems withthis model you have a 1 year or 4000 cups warranty with this.
If you are within this, then give them a call - here is the Manual if you don't have it -
MANUAL -

I suggest you start by removing the beans in the hopper and wiping around to remove oils.
Then refill with fresh dry beans.
Plug in and set up as normal
Set to brew a standard large cup - and adjust grinder to coarse setting while grinding.
Do not adjust with grinder quiet - it must be done while rotating.

Make at least 10 cups this way at the coarse setting.

I think what has happened is that damp beans (frozen or cold) have entered the unit and caused the coffee to gum up at the top of the burr.
This will just push fresh beans out of the way instead of starting to grind them.

If you use dry (light loast) beans, it doesn't seem to happen as much.

Just ake sure you refrigerate most of your stocks, but keep a small stock at room temperature in an airtight tin to prevent this kind of thing.

You can actually push down on the bean stack slightly with a wooden object while the grinder is running if nothing moves on the coarse setting to get things moving.

Feb 10, 2010 | Microwave Ovens

1 Answer

My Saeco won't grind the beans


There's moisture in the grinder & it's clogged - just dismantle the grinder & clean it, then ensure you don't splash water into the bean hopper when you fill the water tank.

Mar 29, 2008 | Saeco Magic De Luxe Espresso Machine

6 Answers

Gaggia Titaminu


check to make sure the blades are secured to the motor shaft. some have a set screw, some are positioned over a pin in the motor shaft.

Sep 10, 2007 | Gaggia Titanium Espresso Machine

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