Had a guest try use my machine. Now when I use the steam wand, steam also blows out of the arm of the cappuccino auto frother arm. Once I have finished with the wand and turn off the dial, steam still blows out the auto frother. Help?

Question edited for typos and spelling. It is a 'frother' rather than a 'throther'.

The roaring is normal, you are releasing steam from a boiler. Steam wand issues are usually caused by cooked milk solids inside the wand. You need a good enzyme cleaner like Rinza. Help and videos in the link

https://www.google.com/search?q=Krups+EA+80+milk+frother+not+working+properly

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Here are some possible reasons why the milk steamer flow is diminished and steam is not coming out of the bottom of the machine:

Clogged steam wand: The steam wand might be clogged with milk residue, which can restrict the flow of steam. Try cleaning the steam wand with a damp cloth or a pipe cleaner.

Faulty steam valve: The steam valve might be faulty or damaged, which can cause a decrease in steam pressure. In this case, you may need to replace the valve.

Blocked milk frother: The milk frother might be blocked with milk residue, which can prevent the milk from frothing properly. Try cleaning the milk frother with a damp cloth or a pipe cleaner.

Faulty milk frother: The milk frother might be faulty or damaged, which can cause a decrease in milk flow and prevent proper frothing. In this case, you may need to replace the milk frother.

If none of these solutions work, it's best to contact DeLonghi's customer service for further assistance

It sounds like there may be a blockage or pressure build-up in the frother or in the steam wand of your DeLonghi Icona Vintage coffee maker, which is causing steam to escape from the unscrew button and blow the fuse. Here are a few things you can try to fix the issue:

1. Clean the frother and steam wand: The blockage may be caused by a build-up of milk or other debris in the frother or steam wand. Try cleaning them thoroughly with hot water and a cleaning solution designed for espresso machines.
2. Descale the machine: If the blockage is caused by mineral build-up, descaling the machine may help to remove it. Follow the manufacturer's instructions for descaling your specific model.
3. Check the pressure release valve: There may be a problem with the pressure release valve, which is causing steam to escape from the unscrew button. Check the valve and make sure it is not blocked or damaged.
4. Contact DeLonghi customer service: If none of the above steps resolve the issue, it may be a problem with the machine's internal components. Contact DeLonghi customer service or a qualified repair technician for further assistance.

It's important to be careful when working with steam and hot water, so make sure to follow all safety instructions and precautions when attempting to troubleshoot or repair your coffee maker.

First, I am NOT a Faema repairman, Though I've worked on some Faemas, and similar espresso machines.
** Your question is a bit vague so I will try to provide info.
The 'semi-automatic' means you don't have to watch the brewing of the coffee. The machine will 'Dose' out a per-determined amount of water through the portafilter. Manual machines require to operator to turn water on and off to dose. Full automatic will grind the beans, measure and pack the coffee, then brew the coffee with water. Some have the option to froth and dispense milk directly into the cup. The industry usually refers these machines as 'Super-Automatics' They are very expensive and are designed for untrained personnel (not a Barista) to make coffee. There are a number of Home use machines now that provide a similar function but can only produce a cup for personal use and not multiple cups.
** I have come across automatic milk steamer and frother. This can be a simple cappuccino attachment to your steam tip. More updated version have an auto-frother that replaces the steam wand and will do a fair job (IF THEY ARE KEPT CLEAN!). Some machines have modified steam wands with sensor probe that will measure the milk temperature and shut off the steam when heated to set point. You will find all these features handy at first as it gets a novice worker quickly up to speed to produce product. But once they get the proper Barista training, most will not use these features as it's generally faster to produce orders the standard way. (also a good Barista will always present a professional looking cup!)
** I've noted that repeat customers appreciate the effort that goes into a properly brewed cup of coffee. Otherwise we would all go to a coffee vending machine (with instant coffee, Yuk!)
Aloha! youtube; ukeboy57

The Ariete Cappuccino Plus milk steamer/frother heats very quickly and is hot to the touch with seconds. When plugged in the red light will be on. If it's not powering up a simple fix might be replacing the cord. I've doneit before and it's not difficult. Just unscrew the bottom. If it's not releasing steam the wand might be plugged. There's supposed to be a long cleaning pin with a loop for your finger. It allows the wand to be kept clean of milk residue.

1. Remove the froth enhancer and rinse under warm tap water. 2.. Wipe the steam wand with a damp cloth. 3. Briefly set the Selector Control to the ‘STEAM’ position to clear any remaining milk from the steam wand. If that doesn't work, remove any rubber parts. Place the metal frother tube in a pot of water with a bit of ammonia or vinegar in it. Heat the water to boiling, then let it simmer awhile.

The "frother" is probably blocked. Remove it and see if you can blow through it. If not, you can try cleaning it with a paper clip. If that won't work, place the metal frother tube in a pot of water with a bit of ammonia or vinegar in it. Heat the water to boiling, then let it simmer awhile. After it cools, try using the paper clip again. You should clean the steamer attachment after each use:
2. Remove the froth enhancer and rinse under warm tap water. 3. Wipe the steam wand with a damp cloth. 4. Briefly set the Selector Control to the ‘STEAM’ position to clear any remaining milk from the steam wand.

This could be blocked. The best way to clear this is to switch off the machine and see if you can dismantle the frother arm. Sometimes the arm will come off by unscrewing. If it does, wash it in hot water and washing liquid. If it doesn't come off try putting the frother wand into a mug of cold water and allow it just to steam the water.
Frother wands don't just steam liquids - they **** up liquid which can block the vents and the actual steam hole which this machines' problem sounds like it does have.

Pull off entire plastic wand off by unscrewing the top plastic piece. Inside the piece that connects to the screw top you should see two o-ring type spacers. The top one should be hard pastic and the one beneath should be rubber. Take the entire unit apart and clean, making sure to put all pieces back in the way they came out.

To put back on, take the top piece and put it back on the metal stem first then put the rest of the wand back on and gently push it as far up the metal stem as possible and screw back together. If you don't have the rubber spacer this could be the problem since the wand really has nothing grabbing onto the metal stem except for the rubber spacer. If this doesn't work, order another wand:

http://www.wholelattelove.com/Gaggia/gaggia_pannarello.cfm

Save yourself the trouble, buy a $1.99 frother at Ikea.  Makes the cleaning process easy - that's what I use at home, never used the steam wand on my machine.
To use the frother, just heat up the milk and froth away.  Pretty easy.