Im new to automatic coffee machines, i just bought a Delonghi ESAM4200 . I made coffee with pre-ground and also with coffee beans and its working fine. The problem its with milk froth, i follow the manual instruction, press the steam button and wait for the light to be steady and then turn the steam know to position "I" but the machine its splitting water from the steam wand (not only at the beginning, all the time) and just a little steam . I made a test with a clear glass with water and it didn't make any bubbles in the glass. I disassembly the steam wand and clean it (it was clean) and put it back but nothing has changed. My machine its new, how can i fix that?