Milk foam Delonghi Primadonna ECAM 550.65

Hello
,since about two months we own our first KVA with the Delonghi Primadonna ECAM 550.65. Currently around 135 cups of coffee and 50 milk drinks drawn. Coffee temperature is on medium. Water hardness 3 of 4 and use of a Delonghi water filter. Initially everything wonderful with reasonable milk foam. Meanwhile, the milk foam is a disaster. Significantly thinner/waterier than the first few pulls of the first 4-6 weeks. Nothing has been changed in the settings. At the reference also comes directly milk and not first steam or so. Milk 1.5% from the fridge. Meanwhile, after more than 50 liters of water then put a new filter. Because of the lousy foam I have then taken the occasion of the first descaling, although the machine has not yet indicated anything. You can "hear" the milk foam virtually disintegrate. I drink already briskly in a few minutes. At half the drink virtually zero milk foam more despite maximum level for foam. After each milk is rinsed with the clean function and milk container and the rest are cleaned every two days with hot water or in the dishwasher.

I hope here for helpful tips,before I tend to be somewhat displeased to Delonghi. Since you pay more than 800 euros and get such a crap!

Thanks in advance for your help




!