Question about Isomac Millenium Espresso Machine

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I have a Isomac Millenium where the heater will not shut off when it reaches the correct BAR preassure, and runs even when the machine is plugged in, and the power switch is set to off. Once it reaches the 1.4 bar the green ready light turns on, but the red light indicating the heater is operating stays lit, and BAR pressure continues to rise. Any idea what could be wrong?

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Hi You need to replace the pressurestat. It is bad. 1.4 bar is way to high also. It should be down around 1.1 bar.

Posted on Feb 06, 2010

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Posted on Jan 02, 2017

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I replaced the water reservoir and the water softener. It did not fill when I turned it on. I tried to run some water by using the coffee lever but no luck. When it got to temperature I heard a pop and...

I hate to say it but your element has ruptured and needs to be replaced. Notr hard to replace if you know how to get the sides off. You need to take the right side off if your facing the machine. the element screws into the side of the boiler. If you need an element I have one.

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I have an isomac millenium which stops working after being warmed up for more than 15 minutes. It would have to cool down completely before I could turn it on and get the green light to turn on again....

There are a few things that will cause this.
Your SSR (solid state relay) is bad. Its on the bottom of the machine inside. If you can see a green light on it , its probably OK.
You could have a thermal fuse on the side of the boiler by the heating element that is bad.
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1 Answer

Isomac expresso machine

We have owned an Isomac Millenium for ~2y.

In the first months, we encountered low water to the brew head, although both the steam and hot water wands had decent pressure and flows.

Adjusting our grind, so that the coffee beans were coarser helped immensely--for awhile.

Then the problem gradually reappeared as an extremely slow brew time. Our machine was still relatively new, so we shipped it back to our place of purchase. It came back working just great and interestingly the filter in the resovoir was now filled with the filtering particulate it did not come with.

I am surmising, that however great the engineering is on the Isomac, manufacturing leaves something to be desired. Do not let your warranty expire. Pay the shipping and fix your otherwise great machine.

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