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Permalink Reply by Brady on January 10, 2009 at 6:37pm

On mine (Astoria - another CMA), the fix was replacing a small rubber seat inside the valve body. This took about 15 minutes. I took the valve apart and replaced all of the rubber components "while I was in there". Look here for an exploded view of the LM steam/water assembly (thanks Terry and EP guys for putting this stuff out there): http://www.espressoparts.com/category/03.01.lamarzocco.04/

I suspect you need a F_326, though while you are in there I'd also replace the other o-rings, etc. May buy them piecemeal, but I suspect the MZKIT1 rebuild kit contains all you'd need. I hope that someone that's done this will chime in to either verify this or correct me... though I suspect the EP guys can give you some more info on this.

This is absolutely something you can do if you have good basic mechanical aptitude. I did what amounted to a full refurbish on our machine over a year ago with only that and good phone support, and the machine still pulls great shots. You can do it. Good luck.

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Permalink Reply by chris ganger on January 19, 2009 at 10:44am

I have run across this exact problem twice now. there are two fixes, the first option would be to replace the entire solenoid (easiest) or you can pull the entire thing apart and get a replacement solenoid plunger. Both are pretty easy with a couple of tools. there is only one really tricky part that requires that you use some serious leverage, a couple of wrenches together like a pair of scissors. it is really pretty easy to do with the aid of the orange marzocco service manual. without that it still should be pretty easy to do if you have ever rebuilt the steam wands.

chris

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Permalink Reply by ray peck on January 19, 2009 at 7:47pm

thanks chris. I am tackling this tomorrow.

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