Hi Before you try to take the grinder apart there is a trick if you have not pushed the button for coffee to many times after it clogged. Turn the grind adjustment to the coarsest setting ( largest number) and push the coffee button. Sometimes the coarser grind will clear the blockage. Oily beans will do this (clog), the grinder. If it clears you can turn the grind adjustment back down but only when the grinder is running. Turn to a number that was higher than the one you had before. If it ever dose this again, do this the next time you push the button and it will clear the obstruction every time. You can turn the grind adjuster to a larger # any time but it has to be running to turn it to a smaller #.
Rice works by absorbing the oils and then cleaning the burrs that are clogged with oily grind residue. Grindz works the same way but is not as messy as rice. If you run into this problem where it says fill beans do what I told you about opening the grind adjustment to the coarsest # and it will do the same thing only you won't have to clean up afterward. It works by making coarse bits the chip the clog away and clean the burrs. They don't pack up like the fine grinds do, so they will push the finer grinds out of the chute and clean the passage to the brewing unit. It works but you have to do it right away.
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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.
I have looked for a service manual for this for you, but they seem to play this close to their chest and want it done by their people only.
You could try phoning their customer care number to get some information out of them though -
TRY HERE
I think measurement is simply timed rather than measured, as an optical sensor would not last long in that environment - may be wrong though. It is easaier to program a set of values for grind setting vs time than to look at each level used.
I think you have done well to clean it as much as you have, but further cleaning would only be possible with taking it fully apart.
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I once had this problem in a Jura E8 machine because I stupidly poured some water throught the grinder to clean it. It clogged. I finally solved the problem by removing the little cap held with a screw over the grinder opening, and blew hot air at fill blast into the grinder opening with a hair dryer. Every 10 minutes or so, I would try to grind a few beans and after 4 or 5 trys the grinder started to work again.
If you were to log on to the
manufacturer's web site, I think you will be pleasantly surprised as
usually one is able to download, by model number, Customer
Instruction Manuals, list
of Dealers,
for spare parts and service, and
Installation Instructions
as required.
Just Google the manufacturer's name and
follow the links. Make certain you are directed to the manufacturer's
web site as some search engines direct you to other sites and they
charge for the information that is normally free of charge.
I hope this helps.
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The top of the burr grinder is now clean although it never looked excessively dark or oily. I took the round cover off (mounted on top of the burr mechanisim) and ran several grind cycles while blowing it out with air. Beans were never stored in refridgerator. I need to access the exit chute below the grinder to clean it out. To this I need the repair manual. Also, where is the bean sensor? Does it measure the volume of the ground beans? Just wondering as it grinds different quantities for 1/2 cups and for strong/mild coffee. I could imagine that an optical sensor could get dirty and needlessly generate the "Fill Beans" message.
Works well in all other respects with preground coffee.
Have Jura E8 with errant "Fill Beans" message. Have cleaned top of grinder with compressed air. Assume the problem is below the grinder in the exit chute. Need directions or service manual to gain access to internals.
I had already tried that without effect. I solved the problem after a bit of Google sleuthing and made a slightly risky bet: I read that griding rice would clean the grinding assembly and wondered if it would help on my machine. Since the espresso maker was already broken how much more broken can it get? I previously had blown the grinder clear of bean residue while running and then turned it upside down to clear the last bits possible. Previously when loaded with beans the grinder made all the right noises but no beans were ground they just wiggled a bit. Loaded it with about 1/2 cup of rice and after a couple of cycles it was apparent that some rice was being ground. Followed that with a cup of rice and soon it was being ground a rapid rate. Looked in the refuse bin and found rice cakes with a lot of coffee mixed in. Continued with another cup of rice and the last rice cake was pure white. Cleaned out the remaining rice and tried coffee beans. Grinding performance was restored and errant "Fill Beans" messages were gone. Ran the cleaning cycle with a Jura cleaning tablet to eliminate the rice residue followed with a couple of clean up cups of coffee. First cup for consumption was made quickly, with good appearance and taste.
There is a cleaning agent Urnex Grindz which is made to be ground up to clean the burrs. The Grindz pellets are coffee bean size and I wonder if rice might work better for the tough cases as the small grain will penetrate better.
Problem solved.
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