Jura Impressa x7. What is cause of malfunction 8 error?

Have you descaled it regularly? Do you have hard water?
Sounds like it's clogged with scale. Try running white vinegar and water through, see if that unclogs it.

Jura Capresso Impressa E8 Espresso/Coffee Maker Error 8 ...

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Jura Capresso Impressa E8 Espresso/Coffee Maker, error 8 related issues. Get free ... We have just done a full disassembly, cleaning, and relube of our Jura Z5 ...

Bosch Benvenuto B30 Espresso/Coffee Maker Error 8 ...

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make sure the water tank is full! there is a small float in the tank that moves up and down near the bottom, make sure this is up and not stuck down.

Jura x7 coffee machines are older models in the coffee machine range. It may simply require a full system clean, using jura cleaning tablets, or more likely a service. Bean to cup machines should really be serviced every year to 18 months depending on usage.

We can put you in touch with a Jura engineer if you need one, contact me here Denby Dale Coffee

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malfunction 4 is the steam boiler sensor has failed

In my case the brew group is jammed in the down position - so I could not remove the grounds bucket. I think error 8 may be when the motor is stuck (over taxed) or the brew group is out of position. I opened up the right hand side after removing the back with the jura oval key tool https://www.jura-parts.com/ then removed the metal panel with a tiny torx head screwdriver I could manipulate the cog on the screw thread with my hands - it was very tight. Lubricated this and it seems to be working now.

Hi, if you havn't already solved this one, it has been caused by pulling the drip tray/ dump box out while the brew unit was still active. Switch off the machine and insert the drip tray without the dump box. Turn the machine back on and the brew unit should re align itself.

SENT IT TO FACTORY FOR REPAIR.