Mr. Cuppacino milk frother manual

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

the frother gradually gets milk buildup and loses suction- an air blast through the milk tube and up the spout (can get an aerosol at hardware store) will help as well as the cleaning cycle. Also I used a q tip to the top of the spout several times but just had the q tip top come off and may have blocked it completely

There may be an issue with the milk you are using if your Keurig K cafe frother is only heating milk and not frothing it. There is nothing wrong with your frother.
You must consider changing the milk you are using and hopefully, your problem will be solved. Read this article for complete details on fixing the frother.
Keurig frother not working

Plugged ports or bad milk.

Had this exact problem a few times on a cleaned well maintained milk jug top with an ESAM5500M. Delonghi 'repaired' it by sending a new milk jug frothing top.

It's caused by milk fat deposits, the frother part on the milk jug may look clean but deep inside it's not. I clean mine with pipe cleaners, detergent and hot water and still it wouldn't froth.

The problem re-occurs for me every 6 months or so. You could buy the milk fat remover solution to clean it. Personally I just boil the whole milk jug frother in detergent and the again in descaling solution, that's fixed this problem twice now, although I think it will eventually corrode the 'o' rings on the frother, still cheaper than buying a new frother part each time though.

If it still doesn't work after that, the only other reason for this problem I found mention of was caused by a broken rubber seal where the milk jug fits to the machine. It's most likely to be milk fat deposits inside the frother though.

Most common cause of this problem is a blockage in the milk jug. First thing you should try is soaking the complete jug top in a quality milk line cleaner (available from specialist coffee machine retailers) for at least an hour and then rinse thoroughly. Then try running a fresh cleaning solution through the jug instaed of milk. Good luck and post again if this doesnt work.

Try a differnt milk. Make sure you are using the spring attachment. My best froth comes from skim milk and a teaspoon of fat free liquid vanilla creamer.

THEY SAY MILK MATTERS. SKIM OR LOW FAT BEST. ALSO MAKE SURE IT IS CLEAN, WHEN YOU ARE CLEANING IT, REMOVE THE FROTHER, TO BE SURE MILK DOES NOT STUCK IM COIL, WHICH CAN MAKE THE FROTHER, NOT MOVE AS QUICKLY AROUND.

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