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NS Oscar problem. Leaking from safety valve.
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Discussions > Espresso > Machines > NS Oscar...  
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johnny4lsu
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johnny4lsu
Joined: 27 May 2011
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Posted Tue Jan 15, 2013, 10:08am
Subject: NS Oscar problem. Leaking from safety valve.
 

Hello. I was having a similar problem with the guy in this thread.

"oscar leaking from safety valve after backflush"

Basically, when I turn the machine on the pump will run for about 4 seconds and then the no water light comes on. I try again and then water comes out the safety valve after a few seconds. Any suggestions?

I contacted Chris' service department and he didn't think it was the 2 way solenoid autofill valve.



http://www.coffeegeek.com/images/58571/300x200/valve.jpg

 
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
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Coffeenoobie
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Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,023
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Tue Jan 15, 2013, 10:48am
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

I have not had your issue.  

  1. What water are you using?
  2. How old is your machine?
  3. Espressoparts.com is where I get most of my parts.
  4. Can you make an post a video?  Listening to the machine helps me.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

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Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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frank828
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Joined: 23 Feb 2011
Posts: 581
Location: Los Angeles
Expertise: Professional

Espresso: GS3
Grinder: RoburE, Kenia
Vac Pot: Hario
Drip: Brazen, CCD, Aeropress, V60,...
Roaster: Behmor, Air Crazy
Posted Tue Jan 15, 2013, 10:52am
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

Coffeenoobie Said:

 Listening to the machine helps me.

Posted January 15, 2013 link

helen, the Oscar Whisperer.   ;)
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Coffeenoobie
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Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,023
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Tue Jan 15, 2013, 11:48am
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

frank828 Said:

helen, the Oscar Whisperer.   ;)

Posted January 15, 2013 link


HAHAHAHA

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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johnny4lsu
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johnny4lsu
Joined: 27 May 2011
Posts: 86
Location: The Sticks
Expertise: I live coffee

Grinder: Baratza Encore
Drip: Clever, Chemex, v60, kalita...
Roaster: Huky 500
Posted Tue Jan 15, 2013, 12:03pm
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

  1. What water are you using?
    I've tried a variety. tap water, distilled mixed with a little tap, tap with pinch of salt.

  2. How old is your machine?
    I really wish that i knew. It does have the sirai pstat. what year did they start using those? My serial number is 157216 (i've tried to find date of man. but no luck)

  3. Can you make an post a video?  Listening to the machine helps me.
    I'll try to do this tonight or tomorrow.


I feel like I know most of you. lol. I've probably read every single thread and every post that you all have made about the Oscar. (i'd agree about Helen being the Oscar Whisperer)

Also, Chris' service dept said that it could be a dirty probe...Make any sense?

Thanks for all the help!

Johnny

 
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
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germantownrob
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germantownrob
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Espresso: Duetto 3, A Dead Oscar
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Posted Tue Jan 15, 2013, 12:12pm
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

johnny4lsu Said:

Also, Chris' service dept said that it could be a dirty probe...Make any sense?

Thanks for all the help!

Johnny

Posted January 15, 2013 link

Yes, it is a very good place to start. If scale builds up on the end of the fill probe then the machine keeps adding more water until it gets above the scale which leaves less and less space for pressure.  Before unscrewing the probe be sure to note how much is sticking up since it is adjustable for depth. If it is cover in scale clean it up so you can perform a full descale on the boiler, HX and group.
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johnny4lsu
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johnny4lsu
Joined: 27 May 2011
Posts: 86
Location: The Sticks
Expertise: I live coffee

Grinder: Baratza Encore
Drip: Clever, Chemex, v60, kalita...
Roaster: Huky 500
Posted Tue Jan 15, 2013, 12:15pm
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

From memory I'd say very little is sticking up.

 
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
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Coffeenoobie
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Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,023
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Tue Jan 15, 2013, 12:27pm
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

Mark how high the probe is before removing he means.  You can't tell anything from the outside about the probe.  Just mark the level so you can put it back in the same way.  Cleaning the probe is recommended by NS when I talked to them, they said sand paper after I asked "do I soak it in descaler?".  I have not done it yet but will when I do my tear down that I hope to start in a week or 2.   Need money to order the parts for the steam wand update mod.

Your tag should have a date on it.  Mine does but the rivet holding it on goes over the date.

Anyway, I have trained my car guy to believe there is something wrong with my car when I tell him it sounds funny.  I listen to machines and modem handshakes....  Maybe there is something wrong with me.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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Markarian
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Markarian
Joined: 27 Jun 2012
Posts: 656
Location: Seattle Area
Expertise: I love coffee

Espresso: ECM Technika IV Profi WT-WC
Grinder: Baratza Forte AP, HG One
Vac Pot: Bunn Trifecta MB
Drip: Moka, Aeropress, Hario V60
Roaster: Behmor 1600
Posted Tue Jan 15, 2013, 1:02pm
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

Helen, my Oscar is similarly missing a date tag and the only way I got any idea how old my machine was was when I (likely unnecessarily) replaced the pump. The original pump had a 2005 date of manufacture. Given that he has the older neplax valve and the red hoses, I'm willing to guess his machine is at least 7 years old.

With regard to the probe, as far as I've known its default state is always pushed all the way in. That's how it seems to look on mine and every other Oscar I've seen pictures of.
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johnny4lsu
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johnny4lsu
Joined: 27 May 2011
Posts: 86
Location: The Sticks
Expertise: I live coffee

Grinder: Baratza Encore
Drip: Clever, Chemex, v60, kalita...
Roaster: Huky 500
Posted Tue Jan 15, 2013, 1:04pm
Subject: Re: NS Oscar problem. Leaking from safety valve.
 

That's actually not a pic from my machine. I'll see if I have one that I can post real quick.



http://postimage.org/image/ssjcp95zf/

http://postimage.org/image/wmbhheq9n/

http://postimage.org/image/3l75805tn/

http://postimage.org/image/k18zm685v/

These were all I had on my phone.

I'm fairly certain that my probe is pushed all the way in. Should I pull it out some?

 
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
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