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Oscar pstat
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Discussions > Espresso > Machines > Oscar pstat  
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Niro
Senior Member


Joined: 4 Feb 2009
Posts: 36
Location: NJ
Expertise: I love coffee

Posted Mon Nov 26, 2012, 9:55am
Subject: Oscar pstat
 

How do you determine if you need a new pstat?  I have an Oscar and lately it seems like it kicks on a lot more frequently then I think it used it.  

I'm not sure if there's anything "actually" wrong...the pour seems to blonde too quickly (I'm using good, fresh beans), so I'm not sure if the temps are off or not.  I admittedly haven't used it in a few months so I might just need to get back into the groove of things to get it right again...but the pstat flicking so frequently is a little concerning.

How often does it usually kick on?  I have to time it when I get home today, but it seems like I hear it flick every 10 mins or so.

Thanks!
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,722
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 Mon Nov 26, 2012, 1:49pm
Subject: Re: Oscar pstat
 

Every 10 minutes OMG!!!!!!
You are missing the 9 that happen between the ones you DO hear!

On average, the cycle is about 50 to 65 seconds rest (off) then on for about 10 to 15 seconds then rest, then on then ...... and so it goes.

Depending on the insulation (or not) on the boiler, the size of the boiler, the size of the heater etc.

Nothing to worry about. YMMV

 
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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Markarian
Senior Member
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 Nov 27, 2012, 5:22am
Subject: Re: Oscar pstat
 

Oscar stays on 24/7. I feel soothed by the rhythm of the boiler relay and the very occasional buzz of the pump topping off the boiler. Assuming you have a Sirai Pstat, it's fully and easily adjustable, but probably doesn't need it. Where do you live? I'm in the Pacific Northwest and I notice that when it gets colder, the boiler kicks on more often to keep the water nice and hot. As Winter sets in, it's only going to get more and more frequent.
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