[Homeroast] Astoria auto-fill problem

Mike Koenig koenig.mike at gmail.com
Mon Apr 25 08:46:42 CDT 2016


The simplest thing to check is the auto fill probe. If it's corroded it may not be sensing the water level properly. 

To troubleshoot take the connector off the probe and touch the boiler.  If everything else is working the pump should stop. 

Another problem could be that the water in the boiler is too pure and can't conduct enough to sense the water level. 


Sent from my iPhone

> On Apr 25, 2016, at 9:12 AM, sci <scizen at gmail.com> wrote:
> Hey guys!
> I have an Astoria Argenta (SAE JUN) single head espresso machine. It's been
> a reliable work horse for our personal espresso routine for years.
> It now has an auto fill issue and won't cut off; it overfills the boiler
> until water shoots out of the vacuum break valve when I turn it on.
> I have a schematic and I'm moderately familiar with the inner workings of
> the machine.
> Anybody know much about these and can help me diagnose the problem? If I
> can figure out what component has failed, I can remove and replace.
> My hunch is that it is either a solenoid valve (stuck open??) or the level
> regulator.
> Espresso deprived,
> Ivan
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