Purchased aerochino 3 last year. Stopped frothing after 3 or 4 months. Called nespresso, did a video with them with ice method etc. Sent machine back as per their instructions and they sent me back my machine that still did not work. Called them back and they wanted to go through the same process again. They keep saying machine must be completely clean, Blah, blah blah. My machine is spotless. This frother froths sporadically. By getting it to work I have put machine in fridge to allow for milk and machine to be same temp. Also I have tried to put milk at room temp into machine at room temp. I have redone the ice method. These procedures do help it work sometimes but not consistently, therefore some mornings we have froth and some mornings not. ( very frustrating) It is fortunate that I love the Nespresso coffee otherwise you would definitely have lost a customer. Extremely poor customer service.