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Questions & Answers
Short answer: You need to lubricate the plunger mechanisms in the brew unit.
Long answer: There are two rubber o-rings - one in the base of the brew unit and on the plunger that descends into this to form a seal. There are great instructions on how to take apart, clean and lubricate the brew unit here:
...but they are not for the faint hearted.
There is also a cheats way too which I use.
First, get some SILICONE lubricant. It needs to be Silicone. You can get it from ACE for $3.
Remove the door / funnel mechanism from the powder inlet - it just lifts out.
Usign a flashlight, take a look inside where the coffee grind goes. You will see a cylinder with a plunger mechanism at the bottom. You need to lubricate the ring on the bottom plunger and the tope one (which you cant see this way).
Use the flashlight and a knitting needle and place some silicone at the base of the plunger - you will see what I mean when you look inside with the flashlight. Also put some around the top lip of the cylinder (for the upper plunger). It is sticky and messy.
Press the "rinse" button.
You can do this a few times. The silicone will not affect the taste of your coffee. I tend to put a liberal amount in and then wipe off the excess with a kitchen towel on the end of the knitting needle.
This is fiddly, but it works. I do this in between complete disassembly, which I do about once per year using the above instructions. If you need to replace the o-rings, you should be able to find suitable replacements at a local hardware store but this is a trial-and-error process, I'm afraid. I have never ordered the ones linked to on that page.
Hope this helps.
Now, if only I could work out how to fix the leak from the rear....
on Mar 11, 2014
Error Code 8
I have the same problem..... you have a faulty brew unit... you will need to send your unit to Jura USA for repair..... I know this the hard way as I cant get them to sell me the darned spare part....
on Mar 25, 2013
SAYS COFFE READY PUSH LARGE
1 Perform the initial setup on the coffee maker. Make sure the coffee maker is not plugged in. Slide the empty funnel into the funnel guides, fill the decanter with cold water, open the lid and pour water from the decanter into the brewer, put the decanter back on the base, then close the lid and wait three minutes for the internal tank to partially fill. Open the lid, fill the decanter with cold water again, and once more pour the water directly into the brewer. Put the decanter back on the base and wait for water to flow out of the funnel and into the decanter. Once it has stopped flowing, pour out any water that is in the decanted and plug in the coffee maker. Press the on switch to turn the coffee maker on and heat up the water in the tank.
2 Ensure the lid is completely closed. If the lid is open, the Bunn coffee maker will not brew coffee.
3 Check the see how much water is in the water tank. The Bunn coffee maker will not begin brewing coffee if less than 20 ounces (4 cups) of water is present in the water reservoir tank.
4 Delime the coffee maker. Unplug the coffee brewer and allow it to cool down. Remove the sprayhead by turning it by hand and set it aside. Insert the flexible deliming tool into the sprayhead tube until all but two inches are showing. You may need to twist and force the tool to go in. Slide the tool in and out several times to loosen lime buildup.
Check the sprayhead for lime buildup. If there are flakes of minerals, they can be removed with a toothpick. Scrub the sprayhead with soap and water. Rinse the sprayhead with water and replace it in the coffee maker. Pour water into the water tank and turn the coffee maker on, allowing water to run through without making any coffee. This will flush any lime fragments through the system. Empty the decanter
on Sep 18, 2011
Trips the circuit breaker when
According to your problem, decaling is necessary for after
every 300 cup coffee. Check the water knob and water passing pipe if there is
any blockage. Open the machine by unscrew it and check the circuit or you can
take assistance from nearest engineer because it is not too easy job for a nontechnical
person. You can also try by help of manual. To get the manual you can visit
wbsite or nearest dealer of the product.
on May 07, 2011
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