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Oscar Simonelli: Milk in the BOILER
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miamiflgator
Senior Member


Joined: 15 May 2013
Posts: 3
Location: usa
Expertise: I live coffee

Posted Wed May 15, 2013, 2:48pm
Subject: Oscar Simonelli: Milk in the BOILER
 

Hi all, long time lurker first time poster here.
Short story is my Oscar Simonelli was under repair for a month and I got the call that it has fixed.
BUT: there is milk in the boiler! I always clean the wand and let the steam out every single time so I don't know how this has happened.

My question is: I did a search, but I am not sure about this: Does Oscar has an anti-syphon valve that would prevent milk from the boiler? If so I will ask for repair under warranty. Otherwise they want to charge $300-$400!!!
I read some posts about cleaning the boiler and I will try that as a last resort.
I am without coffee about a month, and I lost the will to live :)
Thank you
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joey
Senior Member


Joined: 24 Dec 2002
Posts: 341
Location: madison, wi
Expertise: I love coffee

Espresso: Oscar
Grinder: Mazzer Mini
Drip: Chemex
Roaster: Behmor
Posted Wed May 15, 2013, 10:17pm
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

my first question is how do you know that there is milk in the boiler?
my second question is how did it get there?
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plindy
Senior Member
plindy
Joined: 27 Nov 2002
Posts: 73
Location: Seattle
Expertise: Just starting

Espresso: NS Oscar
Grinder: SJ Pharos Lido HG-One
Posted Thu May 16, 2013, 2:28am
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

Yes
see #12

It's the same valve that joey replaced at the HX/TS/Water inlet junction. #4
conjecture : any black deposit inside the boiler could be defined as burnt milk , and thus the user is responsible
What was the the original problem requiring a trip to the shop?

Gluck

plindy: OscarHydraulic-Diagram.jpg
(Click for larger image)
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jimboc
Senior Member


Joined: 25 Feb 2013
Posts: 14
Location: Sydney
Expertise: Just starting

Espresso: mypressi twist
Grinder: Baratza Precico
Posted Thu May 16, 2013, 3:04am
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

Is the pressure relief valve on the Oscar also an anti-vac? If not, how does the Oscar's boiler relieve its pressure upon cooling, to avoid a vacuum inside?
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 474
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 Thu May 16, 2013, 4:12am
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

jimboc Said:

Is the pressure relief valve on the Oscar also an anti-vac? If not, how does the Oscar's boiler relieve its pressure upon cooling, to avoid a vacuum inside?

Posted May 16, 2013 link

No, it isn't...
I only know this because Darkow's recent thread includes his desire to add a breather to his.
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,675
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Thu May 16, 2013, 6:03am
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

jimboc Said:

Is the pressure relief valve on the Oscar also an anti-vac? If not, how does the Oscar's boiler relieve its pressure upon cooling, to avoid a vacuum inside?

Posted May 16, 2013 link

No,

It does not.

You need to bleed pressure from the boiler on startup as there is a false pressure due to the air that has leaked into the boiler after shut down. Many owners ADD a vacuum breaker to the Oscar, I did when I had one and it worked well and was easy to do.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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miamiflgator
Senior Member


Joined: 15 May 2013
Posts: 3
Location: usa
Expertise: I live coffee

Posted Thu May 16, 2013, 6:39am
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

Thanks for the replies!
It suddenly stop heating water, it took sometime for them to figure it out.
First they changed the electronic parts, nothing worked. Waited for another two weeks or so for "other parts" and they now say that it is fixed.
I don't know if it is water or not but, what they told me is that it smells really bad and there is milk...
I guess chemicals is my only option because I think it does not make sense to pay $400 for this, and plus I am not happy with the repair service and I feel that I will have more problems with the machine soon.
I'd appreciate if you share any success stories about cleaning the boiler :)
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GVDub
Senior Member


Joined: 25 Jan 2008
Posts: 849
Location: Los Angeles, CA
Expertise: I live coffee

Espresso: Londinium I, Arrarex...
Grinder: Gaggia MD85, Dienes Mokka,...
Drip: Behmor Brazen, Abid Clever
Roaster: Behmor 1600
Posted Thu May 16, 2013, 7:19am
Subject: Re: Oscar Simonelli: Milk in the BOILER
 

If you look in the "Mods and Restorations" forum, I think you'll find several threads on restoring and rebuilding an Oscar. Doing it properly will entail learning to disassemble and reassemble the machine yourself, but this is a good thing to know how to do, as it can save a lot in the long run through being able to do more maintenance and repair yourself. Having torn down and restored an NS Ellimatic (the precursor to Oscar), I can vouch for that.
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