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Pression problem on La Pavoni Europiccola pro
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Discussions > Espresso > Lever Espresso > Pression problem...  
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natalie68
Senior Member


Joined: 26 Jun 2010
Posts: 24
Location: montreal
Expertise: I love coffee

Espresso: LaPavoni  Europiccola Pro
Posted Thu Jan 3, 2013, 7:21pm
Subject: Pression problem on La Pavoni Europiccola pro
 

Hi,

Since a couple of days when I turn on my machine the ptressure goes quite high, I bleed it,  the pressure goes down a bit and drop down completely after 3 minutes. It can stay close to 0 for 10 minutes and than boiling and than  pressure goes up again. Basicly the pressure is really unstable.
Do you have any idea? The pressurstat? Something I can fix by myself?

I am french so feel free to ask me questions if I am not clear.

Thank you
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stefano65
Senior Member
stefano65
Joined: 30 Oct 2004
Posts: 1,415
Location: Eugene OR
Expertise: Professional

Espresso: Vibiemme,Elektra,
Grinder: Vario,Macap,
Vac Pot: not
Drip: not
Roaster: not
Posted Fri Jan 4, 2013, 7:32am
Subject: Re: Pression problem on La Pavoni Europiccola pro
 

if indeed you have a professionale with the pressurestat
yes most likely is the pressurestat,
however
find what creating the problem,
do you have scale inside the boiler or just a tired pstat?
and act accordingly,
if a lot of scale first descale, remove pstat make sure pipe is clean then after everything is clean install new component
chech also your safety valve, if you have a millennium version you might have the "nipple" (which is like an antivac type) not working properly as well

 
Stefano Cremonesi
info@espressocare.com
www.espressocare.com
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natalie68
Senior Member


Joined: 26 Jun 2010
Posts: 24
Location: montreal
Expertise: I love coffee

Espresso: LaPavoni  Europiccola Pro
Posted Fri Jan 4, 2013, 9:22am
Subject: Re: Pression problem on La Pavoni Europiccola pro
 

Thanks for the answer

I descaled my LaPav, was pretty surprised with the color of water!!!
My problem is solved!!!!!! Rellieved!
I cannot figure out how the scale can cause the lack of pressure stability!
Feel free to explain me.


Thanks in advance!
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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 Fri Jan 4, 2013, 3:50pm
Subject: Re: Pression problem on La Pavoni Europiccola pro
 

On the very bottom of your boiler is a hole. There is a pipe leading downward from this hole and bending off sideways leading to your pressostat. A thick layer of sediment/calcium in the bottom of the boiler can seal this hole almost completely off, allowing the pressostat to react far too slowly to actual pressure in the boiler way over on the other side of the blockage.
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Traynor
Senior Member


Joined: 24 Nov 2007
Posts: 9
Location: Laval, Qc
Expertise: I like coffee

Espresso: Pavoni Euromatic
Grinder: Rocky Doserless
Roaster: Poppery 1
Posted Mon Jan 7, 2013, 8:24pm
Subject: Re: Pression problem on La Pavoni Europiccola pro
 

I had the same problem a month ago.
I removed the pressurestat, descaled the machine and let the solution drip from the pipe to clean the inside of it better.
Just an idea if your problem comes  back.
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