I hve a Jura C9 with error E2, what should I replace??

Ah the Subaru Impressa with S9 engine. :>D

Not quite "says it all" Bryan. So.....
Question edited to add the maker and 'what it is', a Coffee Maker.
Question moved from Cars and Trucks to Jura Impressa category. When you add a maker, you are offered the correct category, 'Impressa' gives you generic Cars and Trucks.

You have a 'Replace Now' message that no one else has!

https://www.google.com/search?q=Jura+Impressa+S9+%22replace+now%22

However, try this. Remove the Grounds Bin. Disconnect from the power. Replace the bin, reconnect power.

This is your manual

https://www.seattlecoffeegear.com/assets/user-manuals/jura/jura-impressa-c9-user-manual.pdf

Press CTRL+F, and type 'replace' and press enter. There are 16 mentions. I think it refers to the grounds bin being not fully placed. I have come across this many times, there is a small infra-red sensor or a proximity sensor.

Dead short somewhere. Check continuity from the element to the case.

Im sure this will be the drainage valve in the at the bottom of the brewing group, please see here http://www.shop.partsguru.com/Jura-Drainage-Valve-C-E-F-S-Series-0010643.htm

Partsguru.com

Try poking something in the hole of the brother. I usually bend out a paper clip and use it. After clean the machine with vinegar.

This just happened to my c9. Tried cleaning and it wasn't dirty. I took the water filter out, pushed on the water tanks spring and it works fine now.

You need to be patient and keep pressing the rinse button. I took a few water tanks of rinsing before it clicked over to heating mode. The manual and DVD need to mention this!

This is their Direct line for Jura brand,

Good luck.

800-767-3554 Monday -Friday 9AM to 9PM and Saturday 9AM to 5PM Eastern Standard Time or email them at [email protected].

I just called their customer service 800-220-5701 with the same problem.

There's a point at the bottom of the chute where you can add ground coffee that tends to clog, especially if water gets in there. Access is from underneath - - remove the bottom tray and reach in - - it's not the hinged flap opening (that's the first thing you'll feel) but if you leave that closed and reach behind it, there's a silver-dollar sized area you're supposed to try to access and clean using a dry cloth. Once that's done you're supposed to try vacuuming from the top and then let it dry for a day or two.