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Silvia - no water through group head
Rancilio Silvia - How to
Step by step guide for easy brewing and steaming with the Rancilio Silvia
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PJK
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PJK
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Posted Sun Apr 28, 2013, 9:11pm
Subject: Re: Silvia - no water through group head
 

Here is the Schemo. I had to reduce the file size to get this forum to take it. If you want it straight from the scanner give me your e-mail address and I'll send it.  Of coarse this schemo is the stock Silvia, but hopefully the water stuff didn't change with the addition of the PID.
Note the pencil markings.  Those are the English names for the parts.  Sorry about the poor contrast. If anything important is unclear just ask and I'll read it off my paper schemo.
Phil


gakku Said:

Thanks for the tips. I tried listening hard but I couldn't hear any clicks. Also I don't hear pressure draining. One more thing - I had bought my silvia second hand and it had been modified with a temperature controller. Not sure if that makes a difference. Appreciate any electrical schemes to look at.

Posted April 27, 2013 link



PJK: Silvia Schematic Small file.jpg
(Click for larger image)

 
Philip J. Keleshian
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D4F
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Espresso: Gaggia Classic PID
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Posted Sun Apr 28, 2013, 9:44pm
Subject: Re: Silvia - no water through group head
 

Similar wiring diagram here and links for PID and functions  :)

http://www.frcndigital.com/coffee/Silvia/SilviaWorks.html

No offense to PJK

 
D4F also at
http://www.gaggiausersgroup.com/
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gakku
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Joined: 24 Apr 2013
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Location: Sweden
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Posted Sun Apr 28, 2013, 9:48pm
Subject: Re: Silvia - no water through group head
 

Thanks to both! So it seems it is likely to be an electrical problem which is not letting the three way valve do its job? Is it usually a problem with electrical contacts? What do I need to look out for? I'll have a good look at it this evening.
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alanfrew
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alanfrew
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Location: Melbourne
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Posted Mon Apr 29, 2013, 4:11am
Subject: Re: Silvia - no water through group head
 

Forget about the wiring diagrams and PID stuff, stop faffing about and replace your solenoid coil.

Alan
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frcn
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frcn
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Posted Mon Apr 29, 2013, 5:59am
Subject: Re: Silvia - no water through group head
 

alanfrew Said:

Forget about the wiring diagrams and PID stuff, stop faffing about and replace your solenoid coil.

Posted April 29, 2013 link

Yup... Likely either failed or totally munged up inside. If you have an ohm meter, disconnect the Silvia from the mains power, remove the panel above the drip tray and behind the group (two Phillips head screws), and you will see the solenoid. Disconnect it and using the ohm meter connected to the common and the hot leads (not the ground), you should see continuity in one direction and none in the other ( + to -, then - to +, as it were). If not, the solenoid is bad. If yes, then the 3-way needs to be disassembled and cleaned. See: http://memweb.newsguy.com/~jenkins/silvia/index.html

 
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gakku
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Location: Sweden
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Posted Mon Apr 29, 2013, 9:45pm
Subject: Re: Silvia - no water through group head
 

Thanks for this. Got a multimeter and there is no continuity both ways, so I assume it is the solenoid. Now I have to find someone who delivers to Sweden. I have to look for a Parker KP07 I understand?
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gakku
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Joined: 24 Apr 2013
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Location: Sweden
Expertise: I love coffee

Posted Tue May 21, 2013, 11:09am
Subject: Re: Silvia - no water through group head
 

Thanks for the tips. Received the replacement solenoid today and it worked right away. Just for others who might have the same problem, I used a Parker ZB09 solenoid which fit perfectly.
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