How do I make cold froth on my aeroccino for my lattes?

Sounds like overheat protection.

I got mine today exact same thing happens... only blue does not warm AT ALL

My Nespresso Aeroccino often would not heat or froth multiple times after one use. I called Nespresso, they have excellent customer service, and was told to rise the inside (careful not to get the outside button or electric elements wet) of the Aeroccino with cold water a few times and to retry. Works like a charm!
The customer service is the best I have encountered in a long while, give them a call, it will make your day they are so pleasant and helpful!

Contact Amazon and tell them of the fault, ask for a warranty replacement or a refund.

I have tried tilting mine slightly, just a 20c peice under one edge of the base put enough of a lean on it to make the milk froth. Shouldn't have to do this, I know. I am having similar issues becasue I don't think I should have to alter the unit. Mine is 2 weeks old.

We bought a Nespresso Milk Frother in 2010 for $100. The frother is the same one that comes with the Citiz machine but is a stand alone model. It froths soy milk very well. The less soy you put in it, the more froth you get but even if we fill it to the max line we still get a reasonable amount of foam. We use Silk brand soy milk. I have no idea if foaming is impacted by atmospheric pressure but it may be a factor to consider if you are using all the same factors as us but not getting great results. We live at a higher elevation Calgary, Canada in the foothills of the Rocky Mountains.

they make one that has the option of frothing milk hot or cold. Blue light is cold. Red light is hot. The red light will always heat the milk. To get to the blue light, you need to hit the button twice.( First will go to red)

Our aeroccino worked fine for 2 years and suddenly it didn't made foam anymore. We tried the "inverting trick" without much success. We contacted Nespresso and they suggested switching from regular fresh milk (we used 2%) to UHT milk (harder to find in US) and to use it cold and freshly opened. So we tried that and it works.
Hope this solution works for you too

The company will tell you to turn upside down for 24 hours to reset. I did this but it did not work. Try turning upside for aeroccino upside down for 24 hr. You do not need to do this to the base. They told me if this does not work, I need to buy a new one. I hope you have better luck. I am on my third one. you may be covered under warranty- call Nepresso soon..they cover them for about 1 year. Good luck

Try descaling, if the element is covered with scale it wont produce enough heat and pressure.

The machine is Krups, and therefore should be covered with one year warranty. Call the number listed on the user manual, or find contact from websites below:

Coffee & Espresso Machines - Small Domestic Appliances - Krups

Home - Krups UK