Miele CVA620 Brewunit stuck
The gear your speaking of is the brew unit drive. This gear drives the brew unit into the different positions to complete the coffee process. From the home position the brew unit receives the fresh ground and then compresses the coffee - I am guessing it is here is where the failure is - if the amount of coffee is to great, or the grind is to fine - the brew unit drive may be having issues trying to compress it, or the motor could just be long in tooth and has weakened. Try less of a grind and a coarser grind and see if that helps .
SOURCE: brew unit stuck
Hi molly girl.
You can try to clean your Brewunit. Most of the times when that message appears, it means the brewunit is dirty
You can have more info in the manual if you dont have it:
http://www.miele.co.uk/Resources/OperatingInstructions/CVA%20620.pdf
SOURCE: My brewunit is blocked
Coffee fines and mineral scale build up in the brew unit filters and also in the creme valve. The pressure to pump water through the unit fails and the flowmeter tells the electronics that no water has flowed, it in turn stops all processes and displays "brew unit blocked" message. If you're handy, call Miele tech support. The'll walk you through how to remove the drainage cup screw off the left rear of the brew unit, get the brew unit out and return the gearing to home position. It's a 50/50 chance the gears will return or you will need a service tech to pull your coffee unit out and re-sync the gears to the electronics. That's of course if they didn't break.
This blockage is is prevented only by using the cleaning tablets and descaling tablets. Both need to be used as outlined in the instruction manual.
SOURCE: Gaggia Synchrony Brew Unit Block
You have got the gears out of alignment. You don't really want to take
out brew group unless at end of cycle. You can fool machine to get brew
group back in.
Here is how :
BREW GROUP REMOVAL AND DRIVE GEARS ADJUSTMENT
FOR AUTOMATIC MACHINES
If you ever find yourself in need of removing a Brew Group that has jammed. This will assist you in doing so correctly.
To fix this problem follow these simple steps:
You will need a #1 Philips screwdriver
1.) First, open the door on the machine and remove the drip tray and dredge drawer
2.)
Locate the nickel size hole in the brew group. It will have an "N" next
to it. At the 9 o'clock position, you will see another hole about 1/3
of the size of the first. Directly behind this hole, or about an inch
up depending on the position the machine was stopped in you will see a
single philips head screw. You may have to look around the side of the
brew group to locate the screw as it is not always visible from the
smaller hole. Remove this screw; it holds a small coupling water inlet
(it is similar looking to a tobacco pipe) to the brew group.
3.)
Remove the brew group by pressing/pushing (depending on your machine)
on the part that says “Press" or "Push”. Pull firmly and straight out.
Be cautious to not break the brew unit. Also be aware of the door of
your machine as it can break as well.
4.) With the brew group
out, remove the small coupling water inlet (tobacco pipe) that is
probably still stuck to your machine and reinstall it in the brew group
as it was before. Make sure the screw is installed snugly but not too
tight.
5.) Turn the brew group around so you are facing the
back. Now imagine what a check mark looks like, the top we will call
position A (longer part of the checkmark) and where the checkmark ends
(the smaller portion) is point B. You will notice what looks like a
large checkmark where the coupling water inlet is located. The water
coupling can slide up and down in this checkmark opening. The water
coupling should be in the B position.
REINSTALLING THE BREW GROUP
To
do this, the gears will have to be reset to the start position. In
order to do so, you will have to bypass the three micro-switches (Brew
Group, Dump Box and the Door switch).
Bypassing the micro switches:
1.)
Looking at the back-side of the brew group, not the side that says
"Push" or "Press," you will notice something fin-like or nose shaped.
This piece fits into a keyhole or coin slot looking slot in the machine
and that is where the brew unit micro-switch is located. Take something
like an index card, envelope, or folded up piece of paper, and insert
it into that keyhole so that it will trick the machine into thinking
that the brew unit is installed. Start the piece of paper at the top of
the slot and slide it to the bottom of the slot. The paper should be
thick enough so you can let go and it will remain in place. Leave this
object in there until the following steps are complete.
2.) WITHOUT putting the brew group back into the machine, reinstall the drip-tray and dredge drawer and close the door.
3.)
After doing so you can then turn the machine ON. At this time the gears
will begin moving until they return to the correct start position. At
this point remove the object from the keyhole position and you can now
reinstall the brew group. If the brew group does not go back in
correctly, try a few more times. The machine will return to its home
position. Note: The two large spokes of The brew drive shaft should in
the Up position
At times, the gears in the brew drive assembly will not complete the cycle to the proper
start position for different reasons. Some of the reasons are:
• Brew group jammed or blocked
• Either one of the micro switches in the brew drive have gone bad.
• Brew drive motor Failure.
• Broken teeth on either of the brew drive gears.
• Dirty brew group, covered by coffee grinds.
• Brew group or gears not lubricated.
• Connections to the board from brew drive assy., or motor have gone bad.
A jammed or blocked brew group happens when the brew group starts the cycle but doesn’t finish it.
SOURCE: display message - brewunit block - can not undo to
YOu must turn the machine off...hold both the small coffee and hot water button...tunr the machine on to light...let go of the buttons..then hold in the large coffee button for a few secinds andletgo ..if that doesn't work hold in the medium coffee button for a few seconds and letgo..that shouldreset the brew unit.
good luck
SOURCE: Saeco Incanto Deluxe brewunit jammed
Remove the dredge drawer. Open the door. On the left side of the brewing unit, and towards the back of the brew group, there is a single screw. Remove the screw. Grab the handle and pull carefully, but firmly with a quick ****. The brew group should come out. There is a piece that remains in the machine. Slide that piece down and to the right and it will come off. Insert the piece into the hole on the backside of the brew group with the clip up. Tighten the screw and move brew group back into position.
To return the brew group to the centered position, you first need to drop the funnel. To do this, look on the opposite side of the brew group from the handle. At the top you will see an object that looks like a sharks fin. If you follow this piece down you will see 2 horizontal bars on the brew group body. Push your finger between these 2 bars and the funnel will drop. Now you can push the puck slide on the left side down and to the center. (You can insert your key into the hole in the front and twist the key to return the brew unit to the center. Line up the 2 diamonds and it centered) If you look down through the funnel you should see a piston. This should be centered in the funnel. If not, locate the slide on the left side of the brew unit,(it should be hanging down, a flat rectangular piece attached to the cylinder) and push the slide to the right until it does. Push the press button and you are now ready to reinsert the brew group in to the machine. First you must close the door and turn on the machine without having the brew group in, but you must have your drip tray and dredge drawer in. Turn the machine on. You will hear the motor turn on and when it stops completely, open the door and remove the tray, now insert the brew group and replace the tray.
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