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The Rancilio S20 Series Thread (S24, S26, S27)
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Discussions > Espresso > Machines > The Rancilio S20...  
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Nathan
Senior Member


Joined: 10 Nov 2010
Posts: 152
Location: Montreal
Expertise: I love coffee

Espresso: Rancilio Silvia v3
Grinder: Vario
Vac Pot: Hario
Posted Fri Jun 10, 2011, 3:59pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

I have a used machine that didn't come with a supply hose. It says in the manual to use a 3/8" hose to supply the machine. But the brass fitting below the drip tray does not appear to be 3/8". I imagine they are referring to the supply tap, and that it goes from 3/8" to some other measurement. I'm estimating 1/2", but wondering if anyone knows for certain?
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Kzin
Senior Member


Joined: 17 Sep 2011
Posts: 1
Location: NY
Expertise: Just starting

Espresso: Silvia/S24
Posted Sat Sep 17, 2011, 2:41pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

I just got a S24 from a friend. Upon starting it up, it filled the boiler with ~2liters of water and started to heat up. However, the orange light on the left lower side is constantly on. In the manual it states: "if the lamp stays on, this means that the autolevel has not been activated. Ensure that the water supply tap is open, otherwise the machine must be switched off and authorized personnel must be consulted". The light will go out if I take the air trap out, but then the machine will not heat up. Any ideas how to fix this?
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carbonkid85
Senior Member


Joined: 6 Sep 2010
Posts: 8
Location: London
Expertise: I love coffee

Espresso: Gaggia Baby
Drip: Aeropress
Roaster: Prima Popper!
Posted Wed Jun 13, 2012, 7:44am
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

Hello all

Currently fixing up an S24 (what a beautiful machine!).

I have swapped the pump and the boiler is now auto-filling okay. The steam wand and hot water outlet are functioning perfectly, and the water is coming out really clean for a machine which has been in storage for so long.

The brew circuit is not working, however. Electronics are all fine, the pump kicks in but barely a drip comes from the group head. Does this sound like a solenoid problem to you? Am I right in thinking that the part I need to strip out and clean is the piece which the pump outlet hose attaches to on the lower right of the machine?

Thanks for your help. I can't wait to get this machine working again...
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carbonkid85
Senior Member


Joined: 6 Sep 2010
Posts: 8
Location: London
Expertise: I love coffee

Espresso: Gaggia Baby
Drip: Aeropress
Roaster: Prima Popper!
Posted Fri Jun 15, 2012, 5:56am
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

Awesome set of schematics for all S20 series and Epoca machines can be found here:

Click Here (www.mrcappuccino.com)
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MXJ
Senior Member


Joined: 3 Oct 2007
Posts: 12
Location: Melbourne
Expertise: I live coffee

Espresso: Rancilio S20 3 DE, Silvia
Grinder: La San Marco SM 95
Posted Mon Nov 19, 2012, 7:30pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

Hello All

I have just restored a 2 group S20 MIDI. All the functions works correctly, except the hot water control. It seems to be opening and closing, intermediately, very fast(spikes). Sometimes it will sit there for a long time and do nothing at all, end then it would start to play up for a few pulses, en then just sit there quietly.

When you push the dispensing button it works correctly.

I have done a calibration on the amount of hot water it dispenses, and it works fine every time I push the button. The push button is new, the solenoid valve is new. I have removed the control card and cleaned it thoroughly with a electronic card cleaning solution, but the problem still persists

Any ideas what else could be causing this problem?

Regards

Max
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jacbri
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jacbri
Joined: 18 Aug 2007
Posts: 234
Location: Saint Paul
Expertise: I love coffee

Espresso: Rancilio S26
Grinder: La Pavoni Zip/Astoria Super...
Roaster: Behmor 1600/digital scale
Posted Sat Jun 15, 2013, 9:01pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

Max,
Replace the wires going to the hot water wand. It may seem crazy but a friend of mine had the same problem. We scraped the crud off the wires and it worked fine....then replaced the wires. Get High temp wires for this machine.
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jacbri
Senior Member
jacbri
Joined: 18 Aug 2007
Posts: 234
Location: Saint Paul
Expertise: I love coffee

Espresso: Rancilio S26
Grinder: La Pavoni Zip/Astoria Super...
Roaster: Behmor 1600/digital scale
Posted Sat Jun 15, 2013, 9:02pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

jacbri Said:

Max,
Replace the wires going to the hot water wand. It may seem crazy but a friend of mine had the same problem. We scraped the crud off the wires and it worked fine....then replaced the wires. Get High temp wires for this machine.

Posted June 15, 2013 link

...If that does not work then its your solenoid
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jacbri
Senior Member
jacbri
Joined: 18 Aug 2007
Posts: 234
Location: Saint Paul
Expertise: I love coffee

Espresso: Rancilio S26
Grinder: La Pavoni Zip/Astoria Super...
Roaster: Behmor 1600/digital scale
Posted Sat Jun 15, 2013, 9:04pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

jacbri Said:

...If that does not work then its your solenoid

Posted June 15, 2013 link


ooops just read your whole message. Definitely seems to be a bad wire.
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jacbri
Senior Member
jacbri
Joined: 18 Aug 2007
Posts: 234
Location: Saint Paul
Expertise: I love coffee

Espresso: Rancilio S26
Grinder: La Pavoni Zip/Astoria Super...
Roaster: Behmor 1600/digital scale
Posted Sat Jun 15, 2013, 9:07pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

Carbonkid,
run some citric acid through your machine for a day. Bake all that excessive buildup out of the grouphead. I promise this will work. You will be able to kill two birds with one stone using this method.
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jacbri
Senior Member
jacbri
Joined: 18 Aug 2007
Posts: 234
Location: Saint Paul
Expertise: I love coffee

Espresso: Rancilio S26
Grinder: La Pavoni Zip/Astoria Super...
Roaster: Behmor 1600/digital scale
Posted Sat Jun 15, 2013, 9:10pm
Subject: Re: The Rancilio S20 Series Thread (S24, S26, S27)
 

Kzin Said:

I just got a S24 from a friend. Upon starting it up, it filled the boiler with ~2liters of water and started to heat up. However, the orange light on the left lower side is constantly on. In the manual it states: "if the lamp stays on, this means that the autolevel has not been activated. Ensure that the water supply tap is open, otherwise the machine must be switched off and authorized personnel must be consulted". The light will go out if I take the air trap out, but then the machine will not heat up. Any ideas how to fix this?

Posted September 17, 2011 link

Not sure if the S24 has a dipstick but I will say that all the others do. This "dipstick" when in contact with water shuts off the autofill and then the orange light goes off. At least thats what happens on my machine. I would investigate this and if it has one clean it off. Probably just a bad connection.

Note: even if you use the best water in these machines. 99% of problems are due to limescale buildup.
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