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My not so hot Oscar
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Discussions > Espresso > Machines > My not so hot...  
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tijolima
Senior Member


Joined: 20 Jan 2013
Posts: 12
Location: Mayotown, MN
Expertise: Just starting

Espresso: Nuova Simonelli Oscar
Grinder: Rancilio Rocky
Posted Wed Feb 13, 2013, 9:23pm
Subject: My not so hot Oscar
 

I finally got all the parts I needed and got my new to me Oscar plumbed tonight and turned it on to allow it to heat up.  Well it did warm up a little but doesn't seem like it is real hot.  I opened the steam valve when I turned it on in order to vent the boiler as it heated up, but I never got any steam out of the steam wand.  It did have a few drops of water off the tip of the steam wand.  The steam wand never got even remotely warm to the touch.  The heater light does cycle on and off.  I pulled water through the group head and the temperature was only about 125 F.  Anyone have any suggestions?
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Markarian
Senior Member
Markarian
Joined: 27 Jun 2012
Posts: 658
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 Wed Feb 13, 2013, 10:26pm
Subject: Re: My not so hot Oscar
 

How long did you wait before checking the water temperature? Have you checked your fill probe for corrosion/scale?
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tijolima
Senior Member


Joined: 20 Jan 2013
Posts: 12
Location: Mayotown, MN
Expertise: Just starting

Espresso: Nuova Simonelli Oscar
Grinder: Rancilio Rocky
Posted Thu Feb 14, 2013, 5:04am
Subject: Re: My not so hot Oscar
 

The machine was on for 2 hours before I checked the water temperature.  I have not checked the fill probe for scale.
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 477
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 Feb 14, 2013, 5:13am
Subject: Re: My not so hot Oscar
 

I don't know the oscar well, so forgive me if this is a dumb question, but...
You said "I finally got the Oscar plumbed", does this mean it used to be a pour over and it started having an issue after plumbing it in?
If it doesn't know that it has unlimited water and believes the reservoir to be empty, it won't fill the boiler and won't heat up. You need to let it know that it has unlimited water, in whatever way the Oscar senses its reservoir. Could be a probe to short to ground or something.  Someone who knows the oscar can tell you exactly what.
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Markarian
Senior Member
Markarian
Joined: 27 Jun 2012
Posts: 658
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 Thu Feb 14, 2013, 5:50am
Subject: Re: My not so hot Oscar
 

SStones, if the Oscar senses it doesn't have water it won't run the pump at all, so I don't think that's the issue. Otherwise, he wouldn't be able to run water through the group.
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,036
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Thu Feb 14, 2013, 10:44am
Subject: Re: My not so hot Oscar
 

I agree with SStones, the wording made me question what he did.

 
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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tijolima
Senior Member


Joined: 20 Jan 2013
Posts: 12
Location: Mayotown, MN
Expertise: Just starting

Espresso: Nuova Simonelli Oscar
Grinder: Rancilio Rocky
Posted Thu Feb 14, 2013, 12:59pm
Subject: Re: My not so hot Oscar
 

Let me clarify.  It is a direct connect model.  I was waiting to get the correct fitting to hook the machine to the water line.  It does not appear as though there is any problem with water getting to the machine.
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,036
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Thu Feb 14, 2013, 1:41pm
Subject: Re: My not so hot Oscar
 

I would have to say it if it getting warm to try turning up the pstat and see if that makes the boiler hotter and gives you steam.  It is worth a try.

 
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
Senior Member
Markarian
Joined: 27 Jun 2012
Posts: 658
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 Thu Feb 14, 2013, 6:01pm
Subject: Re: My not so hot Oscar
 

Come to think of it, that really does sound like his issue, Helen. If the element were bad, it would simply not warm up at all. The Pstat being out of adjustment or bad would just cause it to turn off way too early. Check to see what kind of PStat you have, Tijo. The big, black one the size of your fist is made by Sirai, and is easily adjustable with many turns to achieve good pressure. The smaller ones (the size of a golfball) are from Mater and are extremely sensitive, so you have to be careful not to overadjust them.
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tijolima
Senior Member


Joined: 20 Jan 2013
Posts: 12
Location: Mayotown, MN
Expertise: Just starting

Espresso: Nuova Simonelli Oscar
Grinder: Rancilio Rocky
Posted Thu Feb 14, 2013, 8:30pm
Subject: Re: My not so hot Oscar
 

I opened the hood when I first brought Oscar home and know that I have the Sirai PStat.  From reading other information here I wondered if this might be my issue but being the newbie I am was kind of looking for confirmation.  I am unable to tinker with it tonight but will tomorrow and will report back on any progress.  Thanks
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