Question about DeLonghi EAM3500 Espresso Machine/Coffee Maker

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Milk not frothing

I have a eam 3500 and the milk frother has stopped working,tried cleaning the lid but still not working any ideas, unit is only a couple of months old

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  • texasmarks Feb 01, 2009

    I have the gran dama only about four months old and it is now doing the same thing, we've tried everything. changing brand of milk, cleaning the lid of the milk frother. It's been doing in for about 2 weeks now I guess I'll call customer service.

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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

Called customer service. issue was, if you look at the hook where milk container connects,  you should see two rings, green  and black, if you don't this is what causing the issue.  they send me new once w/o questions asked...

Posted on Jul 19, 2008

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FIXED! This drove me nuts as the machine had been sent back twice and has had two new sets of couplings and lids; problem still not resolved.

But today - bingo - the problem was the lid not fixing on the coupling properly. To check if this is the problem - you should notice some steam residue at the back of the lid. It might be an o ring problem, but I found it was not moving on to the the coupling far enough. So changing the o rings would not solve the issue (in my case).

So, get a sharp knife and whittle a couple of millimetres of the top/back of the lid (where the triangle is / above the top port). This is the point where protrudes the furthest at the back. Doesn't have to be straight - slight curve is more than fine.

Then whittle a millimetre or so from the two parallel points just below the coupling (the two spouts which the jug connects to). This is on the plastic cover - which can be removed by one screw. The jug rests against these so not to damage/wear the plastic covers.

Reducing these areas will allow the jug lid to be fitted closer to the seals, and thus creating a tighter bond.

Hopefully, after this, you'll get a nice lot of foam for your morning fix.

Shame support engineers and customer services could not fix the problem; slight modification to the plastic cover and lid would have done it.

Posted on Dec 18, 2009

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tbirdfan1 says:
may be causing your problem the o-rings are not setting their properly

tbirdfan1 says:
here is some more information

tbirdfan1 says:
It turns out the electrical connection for the solenoid valve that feeds the hot water out into the milk jug/hot water tap had come loose. They are clipped on rather than being soldered into place. Trace the wires back to the main board from the sole

tbirdfan1 says:
from the solenoid (brass bit with grommets) and check that the clips are in place.

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