Jura impress c50 not frothing milk or producing hot water but still makes a cup of coffee

SOURCE: Milk is heated but doesn't produce adequate froth

Inspect the end of the frother nozzle you should see a small plastic piece protruding.
If you dont see it remove the lower half of the frother and insert a pen and push the plastic insert to the end of the frother.
A "click" should be heard when it is located correctly.

SOURCE: milk not frothing

Remove the black plastic outer sleeve of the Frothing Wand (some models have a metal outer sleeve). If done correctly, the “sleeve” has been removed, but the inner wand with red or black washer, is still connected to the machine.
2) The part of the sleeve assembly that you have removed is comprised of 2 pieces, the frothing sleeve and the center piece. The center piece can be seen if you look into the top of the wand.
3) Using a pencil (eraser end), or similar shaped object, push down on the center piece until an audible “click” is heard. The “click” means that the centerpiece is back into the proper position. When in the proper position, the center piece visibly sticks out the bottom of the sleeve about ¼-inch. It looks like a bird beak.
4) Now put the sleeve back on the machine and your machine should be ready to froth again.

As for the milk island, translaltion from the italian solution using google and drying all the parts works

SOURCE: EAM3500S will not froth milk ?

First, check to see if it will pump out steam without a ton of water. If it doesn't, don't use it.

Now, skim milk is terrible for it, the bubbles are too dry and flavorless. Use 2% milk or half-and-half. It should be cold (very cold). I put mine in the freezer in a steel frothing container for 5-10 minutes before use. Just barely submerge the wand (about .25") and turn on the pressure. It should sound like tearing paper (not like blowing bubbles through a straw). Do this until volume increases to around double (if you have a frothing thermometer, it should be around 100 degrees F). Now submerge the wand farther and tilt the cup to create swirling (this is called stretching & sweetens the milk). This should be done until the temperature is around 140-160 degrees F. Done.

If your machine is no good for steam, there's another way: Put milk into a steel cooking pot (I use a saucier for large groups) and put it in the freezer. When very cold (ice forming) put on stove. Whisk briskly while heating up on medium-high. It will create fine foam & stretch the milk at the same time. The bubbles will start big, but become finer as time goes by. I test by stocking my finger in & going until it feels nearly scalding & remove from heat. Just use a ladle for he milk & a spoon for the foam.

SOURCE: not frothing milk

that means that the steamer is not generating enough pressure steam.

This happens either because there is not enough heat, or if you release the steam when pressure is not enough.

Very common problem with the american maid makers.

bear also in mind that Krups are not the best at frothing milk, and this is also a basic model.

If you want the best capuccino Coffee machine, buy the italian ones, Gaggia, Delonghi, Ariete etc. that are all great at this, or get a bigger Krups as a replacement like the Krups XP405040 that is also good at capuccino

SOURCE: I have a Delonghi Magnifica

I purchased a unit second hand for my wife's birthday today. It's only 4 months old, got it home, tested it, same problem... No froth!

I've read all the posts here and all were very helpful troubleshooting guides however they did not solve the issue.

Understanding how the frothing mechanism functions is half the battle in figuring out the solution. It's a simple vacuum type system. No doubt you've read about checking the orings. This is definately the first thing to check however if this is not the reason then consider the following.

The larger of the white tubes that has the red and black oring inserts deep into its port on the tap. Why? It pushes steam past the milk pipe directly into the chrome frothing tube which causes a vacuum essentially drawing milk up it's hose creating the froth. What you can't see without further investigation is that on the underside of the tube centered between the red and black orings is a small hole. This hole is responsible for drawing the milk upwards. If this is blocked, and it probably is then no milk and no froth. Use a really small screwdriver to carefully clean the white tube both from the front and the little hole underneath.

So in conclusion. Any air leak between the red and black orings will prevent the vacuum required to draw milk up the tube and alternatively any blockage of the milk channel will also obviously prevent the flow into the frothing mechanism. Hope this helps.