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Michelangelo/Sorrento E61 question
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jmuffat
Senior Member


Joined: 27 Sep 2013
Posts: 1
Location: us
Expertise: I love coffee

Espresso: ecm michelangelo/ sorrento
Posted Mon Sep 30, 2013, 5:11pm
Subject: Michelangelo/Sorrento E61 question
 

Hi All,

We have an old ECM Sorrento/Michelangelo, double boiler, two E61 groups. Only one group worked. Recently, it stopped pouring shots, instead clear water was streaming from the infusion output below the group. It's been abused quite a bit, but I have hope for it :) I took it apart, removed the fossilized gasket and shower screen, replaced those, clearly the shower screen was badly clogged. In the downtime, other issues came up, the brew valve got stuck. the solenoid was having issues. I cleaned all of it and it seems to work just fine at directing water. I descaled everything as best I could. The once clogged water spout now works, the steam rod is alive and well. I reassembled everything, and sure enough, with no coffee in there, water pours from the portafilter nicely, and sputters through the infusion valve towards the end. But if I put coffee in the basket, barely any liquid goes through the portafilter, never forming a puck, and waters streams through the infusion output. The infusion assembly is the only part that got any maintenance over the years. The pieces are in the attached picture. I wonder if it could be that it does not hold pressure, and diverts water from the portafilter? The part that has routinely been replaced is the black o-ring in the picture. Perhaps it is not up to specs.

Regarding the other group, it looks like when I plug the brew valve solenoid to the group1 controller, it activates properly. So, besides group2 needing some serious cleaning, it looks like something is wrong with whatever controls that solenoid. When I press the second group's button, the pump clearly activates, but the solenoid does not get energized and water goes nowhere. Any thoughts on what could be done?

Thanks!

J.

jmuffat: e61 infusion (640x480) (2).jpg
(Click for larger image)
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