Question about DeLonghi Perfecta ESAM5500 Fully Automatic Bean to Cup Coffee Maker

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Delonghi exam 5500 milk not hot

Milk not hot anymore??

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Posted on Jan 02, 2017

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SOURCE: I have a Delonghi Magnifica

I purchased a unit second hand for my wife's birthday today. It's only 4 months old, got it home, tested it, same problem... No froth!

I've read all the posts here and all were very helpful troubleshooting guides however they did not solve the issue.

Understanding how the frothing mechanism functions is half the battle in figuring out the solution. It's a simple vacuum type system. No doubt you've read about checking the orings. This is definately the first thing to check however if this is not the reason then consider the following.

The larger of the white tubes that has the red and black oring inserts deep into its port on the tap. Why? It pushes steam past the milk pipe directly into the chrome frothing tube which causes a vacuum essentially drawing milk up it's hose creating the froth. What you can't see without further investigation is that on the underside of the tube centered between the red and black orings is a small hole. This hole is responsible for drawing the milk upwards. If this is blocked, and it probably is then no milk and no froth. Use a really small screwdriver to carefully clean the white tube both from the front and the little hole underneath.

So in conclusion. Any air leak between the red and black orings will prevent the vacuum required to draw milk up the tube and alternatively any blockage of the milk channel will also obviously prevent the flow into the frothing mechanism. Hope this helps.

Posted on Jan 10, 2010


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I was told this was a problem with the O rings on the machine (you need to keep these clean or replace them (if necessary) to keep the milk container working properly).

I did this and still had the same problem. Turns out the top on the milk container needed to be replaced. It's $20 from Delonghi but at the time of this writing is out of stock (I have waited three seeks so far and Delonghi is supposed to be escalating my request).

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