Mini vivaldi - Steam Boiler problem

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adrian522
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Mini vivaldi - Steam Boiler problem

Post by adrian522 » Wed Jul 11, 2018 2:41 pm

Hi, Hope someone can help me out.

I'm a bit clueless when it comes to the inside of the machine but I'm willing to have a look around to try to identify the problem.

The machine is a Mini vivaldi II bought in July 2016.

The problem is that the steam Boiler won't start up. When I press the boiler button it makes noise as if it is filling up but after around 90 secs it stops, all the lights go off except the boiler light and you cant do anything. If you press "boiler" again it turns off the steam boiler.

Making espresso is fine just can't use the steam boiler at the moment. any ideas what the problem may be?

I'm based in Ireland and don't know anywhere locally I can bring it for repairs.

I've taken off the front and back covers but can't see anything obviously wrong, though I don't really know what I'm looking for.

Any help would be appreciated.

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chas
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Re: Mini vivaldi - Steam Boiler problem

Post by chas » Thu Jul 12, 2018 8:44 am

You have a water line blockage in the water refill path going into the boiler. The machine will not allow you to pump water out if new water doesn't flow in so that the heater element is not longer immersed in water. In that case the heater element would fry itself.

Usually mineral blockage in this line occurs in one of three places:
1) Just in front of the solenoid inside one of the fittings is a filter screen which could be clogged.
2) There is a gicleur valve right under the solenoid that can be removed by removing a nut and pulling it out for inspection
3) Sometimes a mineral deposit forms right here the water line enters the boiler. You will need to disconnect the water line at that point for inspection.
Chas
LM GS/3 & LaSpaziale Dream v 1.23 (US 120V)
Mazzer Kony E, Customized Rocky
Hottop P/B

adrian522
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Re: Mini vivaldi - Steam Boiler problem

Post by adrian522 » Thu Jul 12, 2018 11:46 am

Hi, Thanks for your response. I'll look into those 3 areas and see if I can spot anything amiss.

Would I be correct in saying that the 3 areas you refer to are the same as mentioned on this thread?
https://www.s1cafe.com/viewtopic.php?f=57&t=2203

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chas
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Re: Mini vivaldi - Steam Boiler problem

Post by chas » Thu Jul 12, 2018 12:17 pm

Yes
Chas
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Mazzer Kony E, Customized Rocky
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JerDGold
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Re: Mini vivaldi - Steam Boiler problem

Post by JerDGold » Fri Jul 13, 2018 1:56 pm

chas wrote:
Thu Jul 12, 2018 8:44 am
You have a water line blockage in the water refill path going into the boiler. The machine will not allow you to pump water out if new water doesn't flow in so that the heater element is not longer immersed in water. In that case the heater element would fry itself.

Usually mineral blockage in this line occurs in one of three places:
1) Just in front of the solenoid inside one of the fittings is a filter screen which could be clogged.
2) There is a gicleur valve right under the solenoid that can be removed by removing a nut and pulling it out for inspection
3) Sometimes a mineral deposit forms right here the water line enters the boiler. You will need to disconnect the water line at that point for inspection.
We appear to have two threads running about the same issue, so I'll reply here as it is more active.

I'm working on where the water line enters the boiler first, since it seemed to be the easiest to remove. I disconnected both sides and removed the right angle plug on the boiler. It seems clogged, since I can barely (although some does go through) blow through it with my mouth. I'm soaking it in vinegar now to break up mineral deposits.

However, while unscrewing it with a wrench (it was super hard) I destroyed the plastic water line, so will need to buy a new one. Is this a simple home depot purchase or something I need to buy online?

Will open and look at the other points later today as well I hope, this is more difficult than I thought it would be :grin:

P.S. Thank you Chas for your never ending patience and knowledge about these machines.

JerDGold
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Re: Mini vivaldi - Steam Boiler problem

Post by JerDGold » Fri Jul 13, 2018 4:06 pm

So I'm not sure if I'm opening and looking at the correct things here. Obviously I got the fresh water intake line out and inspected. However, I cannot for the life of me find the fitting with the filter screen. Incidentally, my machine looks different than whatever machine was pictured in this thread. https://www.s1cafe.com/viewtopic.php?f=57&t=2203. I will post some photos tonight of what I've done and hopefully more help will be forthcoming.

That being said, it will be some time before I can test my machine since I need to buy a new hose and possible new fittings for my fresh water intake.

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chas
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Re: Mini vivaldi - Steam Boiler problem

Post by chas » Sat Jul 14, 2018 8:01 am

Yes, the photos will be different than your machine. They are of my machine and I've never owned a Mini. The Mini may not have a screen. At any rate it sounds like you've found the clog. I've never had to replace that plastic tubing so I don't know what size it is or who might carry it.

The very early S1s were much preferable when all the lines were copper other than Chris Coffee Service in the US. My current main machine is a LM GS/3 which still uses copper tubing throughout, so I am not sure how widespread in the industry use of the plastic tubing is.
Chas
LM GS/3 & LaSpaziale Dream v 1.23 (US 120V)
Mazzer Kony E, Customized Rocky
Hottop P/B

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