Pressing the medium cup in service mode dont work only the small cup works when trying to reset the machine after putting the JP34 back
When the alert came up- Brew unit blocked- this is before you started taking things apart, A, were you able to remove brew unit, Yes or No?
B, after turning power on and then off, Did the machine try to reset brew unit to home position Yes or no?
If Yes were you able to remove brew unit?
SOURCE: Brew unit in Miele coffee system CVA615 block
It sounds like the connector or wiring that links the LCD display board on the door to the main PCB inside the coffe maker has become loose or damaged.
This would cause the text displayed to become scrambled.
Its a 26 way connector that is labelled JP16 (on the next model up) and is next to a large IC.
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: miele brew unit jammed and brewunit block is being displayed
There is a third solution. The brewunit drive motor has three contact switches that indicate home, preset (loading grounds, I assume) and make espresso. The problem is the three contact switches are all on one circuit, so the microprocessor knows a limit switch has been reached, but it doesn't know which one. The programming obviously assumes the limit switches are reached in the correct sequence. In my case, the microprocessor thought the brew unit was in home position when it was in the make espresso position. Miele technical support recognized this immediately, so it is a common problem. The solution is to remove the top panel of the unit, unplug the unit, unplug JP34 on the microprocessor board (four wires, red/yellow/brown/black, in the middle back edge of the microprocessor board). Plug in the unit, put it in maintenance mode, and press and hold the medium coffee button for several seconds. This will move the drive motor past the current limit switch. Plug JP34 back in, plug in the machine, and put it in maintenance mode. Press and hold the large coffee button for a second or two, maximum. Open the machine, and look at the brew unit drive male gear in the main machine as compared to the brew unit female gear. It will take several tries to get the male/female gears to match so you can plug in the brew unit. Once this is done, and the brew unit snaps in place correctly, place the machine in maintenance mode one more time and press and hold the Medium Coffee button to reset the microprocessor with the limit switches. You should be back in business!
SOURCE: I own a Meile CVA 4070 coffee system. The Brew
use any method which helps you
Press & hold down Hot Water button & small coffee buttons & turn ON WITH LIGHT. Release buttons.
Press & hold Large coffee button and hold until you see two '1's on the left side of the screen. Release.
Press & hold medium coffee button until you see two '2's.
Release.
Hit & release quickly Large coffee button.
Brew unit should be reset.
or
Turn
your machine off. Close the door. Depress , holding it
down, press then let go of both. Then press
3 times. On 3rd time, hold it until Service menu appears. Select
then press left arrow to turn from to
. Then press right arrow by This will turn your
brew unit drive to the correct position and you should be able to get
your brew unit in/out and your waste container back in. Make sure to
turn your machine off/on again to get out of Service Menu.
Regards.....
SOURCE: I have a Miele Coffee
The brew unit has lose parts on left-hand-side, wiggle them up and down. Put the waste unit back, switch off the machine and then turn it on (pull the cord). It worked for me!!!
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