MaryKano Senior Member Joined: 1 Mar 2008 Posts: 6 Location: central coast, CA Expertise: I live coffee
Posted Thu Jul 11, 2013, 6:21pm Subject: La Marzocco Linea losing pressure
The large tank for the steam wand and hot water has started shutting off very randomly. Turning the machine off and back on again has been fixing the problem (3x... about every other day) until today. No pressure at all. Anyone have an idea as to what needs replacing? Manual reset button does not fix the issue either.
calblacksmith Moderator Joined: 25 Nov 2007 Posts: 6,825 Location: Riverside, Ca, U.S.A. Expertise: I live coffee
Espresso: ECM Veneziano A1 Grinder: Many different commercial Vac Pot: 40s era Silex Drip: Milita, Bunn&Curtis... Roaster: Cast iron pan, gas burner
Posted Fri Jul 12, 2013, 4:38am Subject: Re: La Marzocco Linea losing pressure
Your machine is a dual boiler machine so it is entirely possible to pull shots and not have any hot water or steam, as you know.
If the reset did not fix the issue, and I doubt it would if the problem was intermittent like you indicated, I would suspect loose connections in the control circuit, broken wire(s) or a bad pressurestat. Most likely, the Pstat points are bad or the Pstat has stopped operating properly.
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