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livia 90 exploded steam/water
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dsbrown
Senior Member


Joined: 26 Apr 2004
Posts: 26
Location: atlanta
Expertise: I love coffee

Espresso: livia 90 semi-auto
Grinder: mazzer mini
Posted Thu Jan 27, 2005, 7:06am
Subject: livia 90 exploded steam/water
 

I have a livia semi-auto. last night i heard a loud explosion and saw water and steam going everywhere. the pump then began running trying to refill the boiler. i turned the machine off and unplugged it. the pressure did not immediately drop like it should. i turned on the steam and hot water dispenser and that helped to relieve the rest of the pressure.

has anyone had this happen with their machine? what is the cause and how do i go about fixing it?

thanks
David
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rcs914
Senior Member
rcs914
Joined: 30 Jul 2002
Posts: 530
Location: Tucson
Expertise: I live coffee

Espresso: Expobar OC, PID'd Silvia
Grinder: Lux & Cimbali Jr
Vac Pot: E-santos,Santos, Hario
Drip: Krups Moka Brew
Roaster: Turbo Crazy
Posted Thu Jan 27, 2005, 8:41am
Subject: Re: livia 90 exploded steam/water
 

Well, it sounds like you tripped the over pressure valve.   This should only happen if your element just didn't turn off, and built up too much pressure.  Why it did is the real question.

Chris

 
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dsbrown
Senior Member


Joined: 26 Apr 2004
Posts: 26
Location: atlanta
Expertise: I love coffee

Espresso: livia 90 semi-auto
Grinder: mazzer mini
Posted Thu Jan 27, 2005, 11:44am
Subject: Re: livia 90 exploded steam/water
 

rcs914 Said:

Well, it sounds like you tripped the over pressure valve.   This should only happen if your element just didn't turn off, and built up too much pressure.  Why it did is the real question.

Chris

Posted January 27, 2005 link

The reason for the bad pressurestat was probably due to limescale buildup but not totally sure. I haven't removed the old pressurestat to check. I have relatively hard water and learned that i need to replace the filter in my Brita pitcher every 3 weeks- max. instead of the recommended 6 weeks by the Brita manufacturer.  


After talking with Jim @ 1st-Line, where i bought the machine, he informed me that it was a faulty pressurestat and the water/steam was being released from the safety valve on top of the boiler. He has placed a new pressurestat w/installation instructions in the mail to me.  On another note, it was a very prompt and pleasurable experience. highly recommend 1st-line and Jim.
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brewman
Senior Member


Joined: 5 Feb 2004
Posts: 20
Location: Olathe, Ks
Expertise: I love coffee

Espresso: BREWTUS II, Pasquini Livia
Grinder: Mazzer Mini
Roaster: Hot Top
Posted Fri Jan 28, 2005, 10:51pm
Subject: Re: livia 90 exploded steam/water
 

I had  this happen to my Livia three times.  The first two pressurestats lasted about four months each time before failing. I replaced the pressurestats with  new ones from Pasquini. The third one only lasted about a month before it failed. Pasquini suggested that I return it for a re-wire job which would take care future pressurestat problems. I had this done about three months ago and so far the machine seems to be holding up. I don't know if you can expect the same type of problem re-occurance as I did, but you might want to talk to Pasquini (or 1st Line) about this possibility so you can have it fixed under warranty (assuming it's still under warranty now) if it happens again.
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randyr
Senior Member


Joined: 9 Feb 2003
Posts: 80
Location: Kansas City MO
Expertise: Professional

Espresso: LM 2grp FB70
Grinder: LM Swift, Mahkonig Guatemala
Drip: Fetco CBS-31AAP
Posted Sat Jan 29, 2005, 9:02am
Subject: Re: livia 90 exploded steam/water
 

The "rewire job" was probably putting in a solid state relay between the pstat and the boiler element. It turns out the stock matter pstat can't take the current that the boiler element uses. The only pstat that doesn't need a relay is the sirai.
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cchan
Senior Member


Joined: 23 Dec 2004
Posts: 22
Location: OR
Expertise: I like coffee

Espresso: Pasquini Livia 90S
Grinder: Pasquini Moka
Posted Sat Jan 29, 2005, 10:30am
Subject: Re: livia 90 exploded steam/water
 

The "rewire job" was probably putting in a solid state relay between the pstat and the boiler element. It turns out the stock matter pstat can't take the current that the boiler element uses. The only pstat that doesn't need a relay is the sirai.

Is it easy to install a Sirai pstat to Livia? Do I need to adjust the boiling pressure after the modification? I am also interested in upgrading to Ulka EAX5 52 Watt Vibratory Pump. This pump should have generated less loud noise than the stock one as ChrisCoffee stated. Any one of you have done this before? Any suggestion? Thanks,  - Joel
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hanguy
Senior Member


Joined: 13 Apr 2010
Posts: 1
Location: California
Expertise: I love coffee

Posted Wed Apr 14, 2010, 11:09am
Subject: Re: livia 90 exploded steam/water
 

Hi,

Saw your posting here and need your help as I have the exact same problem.  Trying to email but djbrown@joimail.com is not valid address.

Just got a pretty old Pasquini (one without the pressure gauge in front) last month.  It was fine last week but now after power on (7 min), there is a loud noise and steam start coming out of the valve on top of the boiler.  This one is closest to the reservoir (pictures attached).  Looks like there are 2 valves on top.  They look slightly different.  The one that has steam coming out is round and has 2 small openings on the side where the steam is coming from plus a small needle on the top.  The other one right across from it, has only a small needle on the top and is not round but a hexagon shape.

If I leave the machine on, after another 2-3 min then the loud noise will come and steam coming out again.  The loud noise is a little bit scary.  Based on your postings, need to replace the pressurestat.  Please let me know how to locate/buy/replace it.  Also do I need to rewire anything ?

Really appreciate your help as I'm very novice.  

Ha.
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fronesis
Senior Member


Joined: 25 Mar 2009
Posts: 21
Location: Baltimore
Expertise: I love coffee

Posted Tue Mar 19, 2013, 5:20am
Subject: Re: livia 90 exploded steam/water
 

Sorry to revive this VERY old thread, but it's the only thread I could find that had my exact problem: the pstat on my Livia 90 failed about 4 months ago, and now this morning the brand new replacement seems to have failed as well.

This seems to have been brewman's experience, but I'm trying to be clear on the solution. It seems a need a new power relay.

Is THIS what I need?
Click Here (www.1st-line.com)
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