I have a malfunction 8 that shows up - Jura Capresso Impressa F9 Espresso Machine

According to a post on Fixya, the engine warning light blinking 4 times slowly followed by 8 times quickly is a sign of a throttle position sensor malfunction. The post also suggests that the engine not starting could be due to a fuel pump malfunction or a faulty spark plug.

AHX18MEV
4 - 12
[8] SELF-DIAGNOSIS FUNCTION
1. Indoor unit
(AH-X18MEV, AH-X18MEV-1, AH-X24MEV, AH-X24MEV-1)
To display the self-diagnosis, hold down the AUX button for over 5 seconds on the indoor unit when the indoor unit is not operating.
• The operation lamp (red), timer lamp (orange) and Super jet lamp lighter) flash to indicate the information of malfunction.
(Display of self-diagnosis result)
The operation lamp (red) and the Super jet lamp (green) flash in synchronization with the timer lamp (orange).
(AH-XP18MV, AH-XP18MV-1, AH-XP24MV, AH-XP24MV-1)
To display the self-diagnosis, hold down the AUX button for over 5 seconds on the indoor unit when the indoor unit is not operating.
• The POWER CONSUMPTION indicator indicates the information of malfunction by showing the main category error (number) and the sub-category
error (-number) alternately in 1-second intervals.
Example: Compressor high-temperature error
Remark

you can only replace lcd's not fix them, take the item back for a manufactures warranty replacement- it sounds like the lcd pixels dead or at least on its way, also a possibility the lcd controller is malfunctioning

DISPLAY SHOWS MALFUNCTION 8 Solution: Turn off and unplug machine. Wait a minute. Turn machine on and wait until it stops making any noise. Now try to pull out the drawer. If this does not work, try the procedure again. If this does not work, call customer service
Regards Kat (please leave feedback, many thanks)

Hi,
A component called CCD IMAGER is faulty and needs replacement, Basically the component works as an eye to view the image when it start malfunctioning screen and viewfinder does not show image. The detail of said part is given below:
Part No. Description
8-753-244-71 ICX611NKF-13 (CCD IMAGER)(HC51E/HC52E/HC53E/HC54E)

For convenience area is marked with red circle in the picture below:

Thanks

Malfunction 8 is mother board failed, you will have to take it to franke uk

I looked into to this it is the ccd and Canon will fix it for free (shipping included), as stated below. I have copied what has helped me!
It has recently come to our attention that the vendor-supplied CCD image sensor used in this Canon digital camera may cause the following malfunction: When the product is used in recording or playback mode, the LCD screen and/or electronic viewfinder may exhibit either a distorted image or no image at all. While reports of this malfunction have been rare in the United States, we have determined that it may occur if the product is exposed to hot and humid environments.
Effective immediately, and regardless of warranty status, Canon will repair, free of charge, products exhibiting the above-mentioned malfunction if the malfunction is caused by the CCD image sensor. Canon will also cover the cost of shipping and handling in connection with this repair.
U.S. residents are kindly directed to contact the Canon Customer Support Center for further assistance at 1-800-828-4040. Support hours are Monday thru Friday - 8:00 AM to 12:00 midnight; and Saturday 10:00 AM to 8:00 PM (all times EST). Alternatively, if electronic support is preferred, please send your email to [email protected]

Malfunction 8 is related to the brew unit typically. It is usually an indication of the brew unit motor having to work too hard to move the brew unit up and down. This is usually cured by disassembling, cleaning, replacing any o'rings that may be bad, and lubricating the unit, then reassembly.
I have had to do this twice on an an E75 and an E8. I finally broke down and bought seal kits and lubricant for doing this. One could by a new brew unit off of e-bay and change out the whole thing. But a simple rebuild will typically suffice.

Mike

check your grinders

They say it is in the CCD sensor. try going to any cannon center.