Milk is too hot and milk control pcb does not respond to adjustments

It is supposed to be like that. You are supposed to steam the milk in a jug with a thermometer in it. The milk is supposed to mix and the bubbles for a tight layer on top.

The actual temperature should be between 120 °F / 49 °C and 140 °F / 60 °C. Milk that is steamed at a lower, steady temperature will have a richer, sweeter flavor profile. If you overheat the milk, it will taste burned, because you've essentially denatured the proteins, preventing foaming and scalding the milk.

Steaming Milk ' ChefSteps

There are videos as well

https://www.google.com/search?q=milk+steamer+wand+correct+temperature

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Ummn - something in your Q. seems not right. The milk is not heated directly - its only heated by the steam as it passes by (and picks up) by the milk using a venturi effect - same as a spray bottle attached to a garden hose. You say you have froth - but you can only get that if you have steam... (it does not just blow air thru to create bubbles). So froth = steam & steam = heat... so milk must be hot.
Suggest you check manual for the 'heat' settings for your expresso as this may have been changed. While this is adjustable, the milk is not.

Also always heat your cups before using them - the silver cup 'holder' at the top does a reasonable job but boiling water does far better.
Cheers Mike

Hi. Have you removed the white wheel and tried to clean it? Check the O-rings on the frothing part for damages.
Sometimes cleaning it hasnt helped at all, The solution for it that might sound crazy =) that fixed it for me at that time was to block the 2 holes with you fingers(be carefull its hot) where the milk comes out from when you make coffee, you get a little backpressure in the milk circuit when doing it. Try 2 or more times. It helpt me.

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)

Clean the milkisland valve,that is on top of the jug.Careful not to loose the small rubber valve which control the air to make foam.To set valve, one side for hot milk, and the other is for foam.

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.
Good luck!

It all depends in the Cappuccinotore(milk frotting part) Change a new one or
Think of a way to reduce the suction tube diameter smaller... to get milk and steam mixture correct.

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.

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