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troubleshoot vetrano
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alanmushnick
Senior Member
alanmushnick
Joined: 16 Feb 2003
Posts: 278
Location: Haddonfield
Expertise: I love coffee

Espresso: Vetrano, gaggia espresso
Grinder: Mini Mazzer
Vac Pot: none
Drip: Krups aroma control
Roaster: I still don't do this.
Posted Tue May 14, 2013, 3:11pm
Subject: troubleshoot vetrano
 

hi
I have the Vetrano original. Lately I am noticing that it takes a lot longer to pull a shot. Like the water from the group head isn't coming out in high enough volume.
with the machine on without a portafilter, how long should it take to fill up 2, 3, or 4 oz glass?
I did just replace my chriscoffee filters. and I did flush out a couple gallons before hooking up my machine. and the water goes from softener to carbon to the machine. I rechecked.
Could some particles have gotten in?
what would be the symptoms or solution?
any other ideas before I try to call Roger or Tim at chriscoffee?

thanks
Alan

 
Alan Mushnick
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alanmushnick
Senior Member
alanmushnick
Joined: 16 Feb 2003
Posts: 278
Location: Haddonfield
Expertise: I love coffee

Espresso: Vetrano, gaggia espresso
Grinder: Mini Mazzer
Vac Pot: none
Drip: Krups aroma control
Roaster: I still don't do this.
Posted Tue May 14, 2013, 3:58pm
Subject: Re: troubleshoot vetrano
 

I also measured the flow without portafilter and in 10s there is 60-70ml coming out of the group head.
I also have noticed that pulling a normal shot, I see some water coming out of the overflow spout behind the group, where the water gushes out when one back flushes. I am not sure I ever noticed water coming out of there during normal shot pulling before.
Does any of this make sense to anyone out there?
thanks for your help
Alan

 
Alan Mushnick
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alanmushnick
Senior Member
alanmushnick
Joined: 16 Feb 2003
Posts: 278
Location: Haddonfield
Expertise: I love coffee

Espresso: Vetrano, gaggia espresso
Grinder: Mini Mazzer
Vac Pot: none
Drip: Krups aroma control
Roaster: I still don't do this.
Posted Tue May 14, 2013, 4:25pm
Subject: Re: troubleshoot vetrano
 

I am also noticing that my brew pressure, which is the bottom part of the gauge is only about 6 and is supposed to be 9.
is that the pressure when resting or pulling shots?
maybe this is the issue.
thanks
Alan

 
Alan Mushnick
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sweaner
Senior Member
sweaner
Joined: 16 Nov 2007
Posts: 1,132
Location: Yardley, PA
Expertise: I live coffee

Espresso: Vetrano, Arrarex Caravel, La...
Grinder: Mazzer SJ, OE Pharos
Drip: Bunn Trifecta MB
Roaster: Poppery II
Posted Tue May 14, 2013, 5:09pm
Subject: Re: troubleshoot vetrano
 

Alan, I never see water from the back of the group during a shot. I will measure the water output when I next use the machine.

 
-Scott
“Coffee - the favorite drink of the civilized world.”
Thomas Jefferson
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 505
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Wed May 15, 2013, 3:53am
Subject: Re: troubleshoot vetrano
 

alanmushnick Said:

I see some water coming out of the overflow spout behind the group, where the water gushes out when one back flushes. I am not sure I ever noticed water coming out of there during normal shot pulling before.

Posted May 14, 2013 link

There's your problem. You have a constant leakage over your three way valve.
A good backflushing might fix this. There shouldn't be noticeable flow out of the drain when brewing. Something is preventing the valve from closing off the drain when brewing.
If backflushing the shifeces out of it doesn't work, physically take it apart and clean it. It isn't an electrical issue, because if electrically failed, it would spring-return to the drain-closed position.
If after cleaning and reinstalling, the valve still leaks to drain, replace the valve.
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