I've been blessed to have as many good years as this machine as i could possibly get and i am very thankful. my Jura impressa 9.3 is a good coffee machine. just recently it started developing problems. i've heard the most common of the problems normally relates to frothing milk. It is said that whenever you are dealing with fresh milk automatic coffee machines, one has to ensure a number of things are taken care of to ensure the continual working of the milk frother and Jura coffee machines are no different. That being said, I speculate as to if its that simple. Which is why I need to open up the machine with a oval head key and take the shell off for a closer look. I've been trying some of the YouTube suggestions to no avail. Running water into it, putting it in the shower, blowing water into the brewer, and all sorts of remedies that people have put on film claiming to have fixed their jura. so far i have used the oval head key to take the sides off and i can see a build up residue on the shell and brewer. i haven't yet found the issue to fix my coffee maker, i just took a break to get my mind straight and let you know the coffee screwdriver works great and thank you for the fast delivery.