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Delonghi Railto 4500 - Problem is the milk is not frothing.

I have replaced o-rings where the milk container connects. I have cleaned/cleared the holes in the coupling. I have run descaler through the milk container. The milk container works on an identical machine that I have. I do not see any leaks when I open up the machine. What's next?

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Posted on Jan 02, 2017

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SOURCE: EAM3500S will not froth milk ?

First, check to see if it will pump out steam without a ton of water. If it doesn't, don't use it.

Now, skim milk is terrible for it, the bubbles are too dry and flavorless. Use 2% milk or half-and-half. It should be cold (very cold). I put mine in the freezer in a steel frothing container for 5-10 minutes before use. Just barely submerge the wand (about .25") and turn on the pressure. It should sound like tearing paper (not like blowing bubbles through a straw). Do this until volume increases to around double (if you have a frothing thermometer, it should be around 100 degrees F). Now submerge the wand farther and tilt the cup to create swirling (this is called stretching & sweetens the milk). This should be done until the temperature is around 140-160 degrees F. Done.

If your machine is no good for steam, there's another way: Put milk into a steel cooking pot (I use a saucier for large groups) and put it in the freezer. When very cold (ice forming) put on stove. Whisk briskly while heating up on medium-high. It will create fine foam & stretch the milk at the same time. The bubbles will start big, but become finer as time goes by. I test by stocking my finger in & going until it feels nearly scalding & remove from heat. Just use a ladle for he milk & a spoon for the foam.

Posted on May 03, 2009

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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

diodeic
  • 1622 Answers

SOURCE: Delonghi ESAM3500 with not froth milk. Water will

Hello,

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 definitely 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 rings 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 Sep 23, 2011

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Delonghi esam 5600 will not froth milk


Here is the manual:
http://www.delonghi.com/Global/InstructionManuals/EN/ESAM5600%20Intro%20EN.pdf

Two causes from the troubleshooting section:
The froth regulator is incorrectly adjusted. • Adjust following the instructions in the section on preparing drinks with milk.

The milk container lid is dirty. • Clean the milkcontainer lidasdescribedin the section "Cleaning the milk container".

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Delonghi magnifica promblems with water and milk


Frothing jug
For milk frothing issues, soak the milk jug cover in hot water and rinse several times. If it has a froth control that can be removed by sliding in the direction of travel towards the edge whilst jiggling it gently up and down. Clean off the little o-ring with a toothpick, be gentle. The control should easily slide and click back in place when done.

Froth still no good? Examine the milk coupling to ensure the o-rings are in the right spot and are pliable and undamaged. There should be an o-ring (usually green) on the top spigot, a (black) o-ring at the front of the bottom spigot and a (red) oring at the rear. The groove halfway along the spigot should be clear. Now with the toothpick and a hot moist cloth clean all the crud from the milk coupling, especially inside the smaller spigot. Check the tiny hole at the back of the larger spigot is not blocked.

Check the flow from the hot water spout is good. If not, there are internal issues, try descaling. If it is, test the frothing jug, if it is still weak either the jug cover or the milk coupling needs to be replaced. Get them to try a known good test jug at your local coffee service center to find out which, most will be happy to do this at the counter.

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Had the same prolem replaced the coupling where the jug clips in. Item 111 - part number 5532123200 coupling. If your not technically experienced then you may need to take it to a service agent. Had to fairly well dismantle machine to complete repair.

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I have a Delonghi EAM 4500 and it does not froth/Foam the mil, I have replaced the milk cover lid 3 times, still it works for a short time then stops.


remove the o rings where the milk frother connects to, there is a green, red and black rubber O ring. Remove them and get a toothpick and clean around where they sit. You will notice a hard milk build up like when you get on your teeth. This is what
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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Delonghi Magnifica Coffee Maker the milk is not frothing properly - there's lots of steam & very little milk being issued from the spout We clean the milk jug each day, have adjusted the plastic tube...


You did not state anything about descaling, but every now and then, I also add water and descaler to the milk container and use the "Frothing" program to run through the water and descaling-solution (double-click the Cappuchino button).
I have also noticed that the first cup (and sometimes even the second) will produce less milk, and not as well frothed milk as later cups. My theory is that the machine is warmer when producing later cups.
If possible, you could try to run two-three frothings of plain water through before switching to milk. I realize this is inconvenient, but it could be worth testing this to see if it helps. We luckily have two milk containers and keep one filled with water just for the purpose of heating up (or whatever we do :) the frothing system before serving the first cappuchino.
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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).

I finally got frustrated with the whole thing and completely disassembled the milk container top (there are a total of 5 screws and you need to remove the froth control slider to get to one of them) and gave everything a good cleaning. Pay attention to the small orifice on the inside of the chrome tube that the milk comes out of. Using a dental gum cleaning brush or similar sized brush and some hot soapy water should get the dried milk residue out. Inside the top is also a rubber piece that the froth regulator inserts into. Reomve this rubber piece and clean thoroughly. Make sure and clean all other areas inside the top with hot soapy water. Make sure to look the top over well as you disassemble to be sure note all component positions for reassembly. Make sure when reassembling that the cleaning button and its spring are reassembled correctly. The small red O ring on the end of the cleaning button's rod should be cleaned well and the small tube into which it inserts should be free of any milk residue. One last item to check is the rubber bushing that rubber milk uptake tube inserts into is clean and making a good seal. Note that this bushing should make a good seal on both sides (the side the rubber uptake insrts into and the side the upper side of the top inserts into. Make sure all parts are reassembled correctly. In general if you clean and rejuvinate all areas that need to make a tight seal you should get good results. I have no experience here but it would be my observation that even with a good thorough cleaning job the results may not last a real long time as it seems that parts in the top show wear after about a year and a half of daily use. In my oppinion the purchase of a new $20 top makes sense, but if you can get one or don't want to wait you can spend the 30 minutes to do the above cleaning. Because of apparent backorder issues at Delonghi this may also be a good idea to buy upfront. Make sure to include the 5 O rings in the order ($1 each) to avoid paying two shipping fees. I have found one of the O rings at Lowe but was unable to find a few of the sizes (smaller than Lowes sells).

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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.

Apr 09, 2009 | DeLonghi Coffee Makers & Espresso Machines

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