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Duetto II steam boiler not working!
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Discussions > Espresso > Machines > Duetto II steam...  
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espressobecky
Senior Member
espressobecky
Joined: 12 Nov 2002
Posts: 681
Location: Northern BC
Expertise: I love coffee

Espresso: Izzo Alex Duetto
Grinder: Mazzer Major, Baratza...
Vac Pot: Hario TCA-3
Drip: French Press, Chemex
Roaster: Behmor 1600
Posted Wed Aug 1, 2012, 7:43am
Subject: Duetto II steam boiler not working!
 

The steam boiler on my Duetto II has acted up in the past.  Sometimes it would have very low steam pressure until I cleared the wand and then would gradually increase the the usual boiler pressure.  But now I'm getting nothing.  No steam or hot water at all.  The espresso still brews as per normal, but I can't get the steam boiler to work.  Any ideas?

 
...and on that note, I need a coffee.
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
Posts: 7,672
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 Wed Aug 1, 2012, 7:50am
Subject: Re: Duetto II steam boiler not working!
 

Sorry for your troubles,
I don't remember, is the steam boiler PID or Pstat?

It sounds like whichever device is maintaining the temp, has failed. No hot water and no steam, I think it is a safe bet that there is no heat in the steam boiler (DUH!) If it is a Pstat, I would look at the contacts condition, they do wear out though not as often as some posters might hint at. Pstats are pretty tough devices but anything mechanical can and will wear out.  OK, I did a little home work and your steam boiler is via PID, according to the Chris coffee website.



It should be a fairly easy issue to trace. Start at the boiler. If the heater is getting voltage then the problem is either in connections to the boiler, the overtemp safety switch if you have one or the heating element.
If there is no power to the heater in the steam boiler, then work backwards and look at the regulating device for proper operation.

Electronic devices most often fail due to connections getting corroded, See if you are getting any power out from the SSR that switches power to the heater. It might also be a failure of the temp thermocouple that is connected to the steam boiler.

 
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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espressobecky
Senior Member
espressobecky
Joined: 12 Nov 2002
Posts: 681
Location: Northern BC
Expertise: I love coffee

Espresso: Izzo Alex Duetto
Grinder: Mazzer Major, Baratza...
Vac Pot: Hario TCA-3
Drip: French Press, Chemex
Roaster: Behmor 1600
Posted Wed Aug 1, 2012, 8:16am
Subject: Re: Duetto II steam boiler not working!
 

Okay thanks!  I'll rip it apart once once I'm done drinking coffee for the day and maybe take some pictures if I can't get it figured out.

 
...and on that note, I need a coffee.
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espressobecky
Senior Member
espressobecky
Joined: 12 Nov 2002
Posts: 681
Location: Northern BC
Expertise: I love coffee

Espresso: Izzo Alex Duetto
Grinder: Mazzer Major, Baratza...
Vac Pot: Hario TCA-3
Drip: French Press, Chemex
Roaster: Behmor 1600
Posted Sun Aug 12, 2012, 7:27am
Subject: Re: Duetto II steam boiler not working!
 

Okay, I think I've finally got things figured out.  It seems that a wire going into the steam boiler overheated and got a bit burned.  Now, the reason this happened, I think, is because I must've been running it in the 20 amp mode instead of the 15 amp mode as I had previously thought.  Here's where it gets interesting.  It's not a Duetto II.  I was sold a Duetto as a Duetto II and told that just the steam and hot water arms and the feet on the machine were different than what I was expecting.  Not impressed.  I've emailed the company that sold it to me and will give them a chance to hopefully make things right before posting too much on here, but does anyone know how to change the PID settings on a Duetto?  I found both a Duetto and a Duetto II manual online, but only the Duetto II manual says anything about changing it from 20 amp to 15 amp modes.  Is this even possible with the straight Duetto?

 
...and on that note, I need a coffee.
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 2,961
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4 x2, VDD...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Sun Aug 12, 2012, 10:29am
Subject: Re: Duetto II steam boiler not working!
 

I don't know the answer to your question.  I don't think there are more than a couple of people here that even might know the answer.

I would call Chris' Coffee Service, if I were in your shoes.  I think they would be happy to help you, even though you didn't buy it from them.  Also, they are the most knowledgeable people in North America regarding the Izzo machines.

Please report back after, as a Duetto II owner and frequent poster, I am very interested in what you find out.

 
.
Always remember the most important thing is what ends up in your cup!
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espressobecky
Senior Member
espressobecky
Joined: 12 Nov 2002
Posts: 681
Location: Northern BC
Expertise: I love coffee

Espresso: Izzo Alex Duetto
Grinder: Mazzer Major, Baratza...
Vac Pot: Hario TCA-3
Drip: French Press, Chemex
Roaster: Behmor 1600
Posted Mon Aug 13, 2012, 12:47pm
Subject: Re: Duetto II steam boiler not working!
 

Apparently the Duetto I only comes in a 20 amp model and is not convertible to a 15 amp mode.  And I do, in fact, have a Duetto I (that I've been running on a 15 amp circuit with a 15 amp converter cord that was sold with the machine for the last year).  Hopefully the company I'm dealing with is willing to help me out a bit here.  I think if I was to order a machine again I would just order from Chris Coffee and pay the extra.  They have been really helpful to me in getting this figured out.

 
...and on that note, I need a coffee.
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 2,961
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4 x2, VDD...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Mon Aug 13, 2012, 4:21pm
Subject: Re: Duetto II steam boiler not working!
 

if you have your own home, you may be able to get an electrician to run a dedicated 20 amp line to where you're using it.

Good luck!

 
.
Always remember the most important thing is what ends up in your cup!
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JeepinGeo
Senior Member


Joined: 5 Dec 2007
Posts: 175
Location: Campbell, CA
Expertise: I love coffee

Espresso: Alex Duetto, Silvia
Grinder: Mazzer SJ (x2), Rocky DL
Posted Thu Aug 16, 2012, 8:53am
Subject: Re: Duetto II steam boiler not working!
 

espressobecky Said:

Apparently the Duetto I only comes in a 20 amp model and is not convertible to a 15 amp mode.  And I do, in fact, have a Duetto I (that I've been running on a 15 amp circuit with a 15 amp converter cord that was sold with the machine for the last year).  Hopefully the company I'm dealing with is willing to help me out a bit here.  I think if I was to order a machine again I would just order from Chris Coffee and pay the extra.  They have been really helpful to me in getting this figured out.

Posted August 13, 2012 link

esspressobecky,

The early Duetto I's were 20A only. I converted mine to 15/20A capability and Chris started offering the 15/20A option soon after. The fact that you received a conversion cord leads me to believe yours is 15/20A capable. Remove the cup tray, remove the top cover panel and see if you have a toggle switch somewhere near the top of the machine.

If your machine is running in 20A mode (both heater elements can run at the same time), I'd be weary of running it on a 15A circuit. I saw about 1900 watts in 20A mode so there is a danger, not to the machine but to the wiring feeding the machine (possible overheating, house fire, etc.).

Does your Duetto have green and red panel lamps on the right side? If so, watch the red lamp and the 'dot' on the PID. If they're both ON at the same time then both heater elements are on at the same time (20A mode). If they alternate, you 're in 15A mode.

George
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espressobecky
Senior Member
espressobecky
Joined: 12 Nov 2002
Posts: 681
Location: Northern BC
Expertise: I love coffee

Espresso: Izzo Alex Duetto
Grinder: Mazzer Major, Baratza...
Vac Pot: Hario TCA-3
Drip: French Press, Chemex
Roaster: Behmor 1600
Posted Fri Aug 17, 2012, 7:36pm
Subject: Re: Duetto II steam boiler not working!
 

There is no toggle switch.  It was a demo model, so they didn't see the need to install one, but are looking into a conversion kit for me now.  I'm going to ship it off to get a conversion kit installed and have the boiler issues resolved hopefully soon.  My husband is an electrician, so he could always install a 20 amp outlet in the kitchen, but it would require a bit of drywalling on my part and we're planning on selling the place and moving in the next 6 months or so, so I'd rather just get a toggle switch installed.  And even if I fix the boiler issues in the meantime, I definitely won't be running it in 20 amp mode anymore without a dedicated line.  I was under the impression it had been set to run on a 15 amp circuit when I got it but am not going to risk that again now that I know better!  Looks like it's going to be press pot for me for awhile longer.

 
...and on that note, I need a coffee.
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 2,961
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4 x2, VDD...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Sat Aug 18, 2012, 8:19am
Subject: Re: Duetto II steam boiler not working!
 

I would seriously consider that 20amp line.  It will allow you to run both boilers at the same time.  Chris' says there's no different in the home environment, and he may be right, but I've thought at times (particularly when making a bunch of drinks back to back for guests) that I wold notice a difference if I could run it in 20amp mode.  I asked an electrician to give me an estimate on running a line for me, and he didn't want to do it because of the location of my breaker box in relation to my coffee (formerly wine) bar.

 
.
Always remember the most important thing is what ends up in your cup!
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