I checked only two things. First, I checked is that the grinder wheel is not jammed. Second, this model has a switch in the front that is switched when the container (for the ground coffee) is clipped into position. I put a meter over that switch and it works. There is also a switch on the top that turns the unit on, but I have not been able to dissassemble the entire unit to get to it (it seems to me that a very long screwdriver would do the trick). Any ideas for going further? Is it worth pursuing given that a new unit is $45?
Thanks for the help, and great site.
Best regards,
Hal Fullmer
I just had the same problem, and careful examination revealed a horizontal (circumferencial) crack in the feed tube just above the top grinder wheel. I imagine the force of the grind is causing the crack to expand so that the wheels are jamming together creating too much friction/force for the grind to continue. Limited parts are available on cuisinart.com. Where you only need the shaft in this case, you will have to buy the entire bean chamber to get that part. About $8 plus shipping. They're showing the model as DBM-8. I'm pretty sure it's the same model as CCM-16PC that's stamped on the bottom.
My CCM16PC coffee grinder also stopped suddenly. I tried to clean the oily reside from the shoot and let it set for thrity minutes. I loaded it up (with a SMALL batch of Beans) and it then worked fine. Perhaps I was grinding too many beans and it got overheated, and then stopped. I was about ready to tear into it and "fix" and perfectly good grinder.
how did u clean the oily residue?
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On my machine the problem was the safety switch. This is located on the base plate and is activated by a plastic edge on the bottom of the basket. Unplug the machine and activate the switch manually with a small screwdriver of dull knife. Then take a can of dusting air (for cleaning computers and such) and clean out all the coffee dust inside of it. After a couple of air sprays the machine started working again.. Good luck.
My CCM16PC coffee grinder also died. It worked pretty well for several years. Several times in the past it had its output shoot plugged and stopped grinding, but poking in there with a bamboo skewer unplugged it. All these Cuisinart coffee grinders seem to have the same basic construction. Two metal grinding faces screwed into plastic, one on the hopper and one in the bottom of the body. It took me a while to figure out the hopper unscrews from the unit. A long phillips is needed to remove the top of the body from the lower part. On mine the plastic where the metal grinding faces screwed into on both sided had shattered. I guess I just need to factor in a life span of about 3 years.
This issue with the threaded coffee hopper barrel seems to be a common cause of failure with this unit. There are two proximity (safety) switches in this appliance. One is at the base of the unit where the basket slides into and is probably not the problem. The other is located on the top of the unit and is activated when the the hopper is screwed into the unit. It the hopper is cracked, not enough pressure is being applied to the switch to properly close it. By simply pushing down on the hopper from the top after being threaded in to the correct grind position, I was able to make it function because the switch was closing. Hope this helps!
I also had my grinder simply stop working. However, the day before a big piece of plastic came out of it. It turned out to be from the threads of the feed tube. I wouldn't have looked there if not for the comment from Log_House
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