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Rancilio Silvia problem - short - Advice needed
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alex_atm
Senior Member


Joined: 15 Feb 2014
Posts: 1
Location: Australia
Expertise: Just starting

Posted Sat Feb 15, 2014, 5:32pm
Subject: Rancilio Silvia problem - short - Advice needed
 

Hi guys,

I have had a problem with my Silvia for a while now, intermittently trips the circuit.

After reading suggestions online I decided it was probably a busted heating element. I disconnected the heating element and played with the machine for a bit. I was unable to make it trip (however I note that it trips very intermittently ordinarily).

I removed the boiler to confirm the heating element was shot but can't see any cracks or damage, it is possible that they are between the coils but really it looks to be in very good condition. After doing this I was concerned that perhaps it is something else that is tripping the machine and I am reluctant to order a new boiler.

Playing around with a multimeter with the boiler full of water (removed from the machine) I get a resistance of about 2 M Ohms between the terminal and the boiler itself. Is that acceptable? I am also concerned that the breakdown may only happening at high temperatures and hence I won't be able to test it.

I also note that it is not a problem with the trip circuit as (stupidly) i plugged the machine into a non earthed circuit and got a shock :shock: about half way through making a coffee (when I was steaming).

I should also mention that I am getting a 50 Ohm reading across the two heating element terminals. (I don't know if that has any relevance to my problem but I thought it seemed a bit high).

Any advice would be greatly appreciated.

Thanks!!!
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,774
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 Sun Feb 16, 2014, 9:37am
Subject: Re: Rancilio Silvia problem - short - Advice needed
 

alex_atm Said:

...lso note that it is not a problem with the trip circuit as (stupidly) i plugged the machine into a non earthed circuit and got a shock :shock: about half way through making a coffee (when I was steaming).

Any advice would be greatly appreciated.

Thanks!!!

Posted February 15, 2014 link

That is a major indication of damage and a dangerous situation.

 
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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SStones
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SStones
Joined: 24 Nov 2012
Posts: 477
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Sun Feb 16, 2014, 10:04am
Subject: Re: Rancilio Silvia problem - short - Advice needed
 

alex_atm Said:

Playing around with a multimeter with the boiler full of water (removed from the machine) I get a resistance of about 2 M Ohms between the terminal and the boiler itself. Is that acceptable? I am also concerned that the breakdown may only happening at high temperatures and hence I won't be able to test it.
Thanks!!!

Posted February 15, 2014 link

You're correct.  When it is hot and the element is on, and there is steam boiling through the insulation inside the element the conductivity is much worse.  The element needs to be replaced.
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Burner0000
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Joined: 28 Jul 2011
Posts: 1,082
Location: Cambridge, Ontario Canada
Expertise: Professional

Espresso: Rancilio Silvia, VFA Expres...
Grinder: Macap MX/VFA N1464/Kyocera...
Drip: Manual Drip, French Press
Roaster: Behmor 1600 / Sonofresco
Posted Sun Feb 16, 2014, 10:42am
Subject: Re: Rancilio Silvia problem - short - Advice needed
 

alex_atm Said:

Hi guys,

I have had a problem with my Silvia for a while now, intermittently trips the circuit.

After reading suggestions online I decided it was probably a busted heating element. I disconnected the heating element and played with the machine for a bit. I was unable to make it trip (however I note that it trips very intermittently ordinarily).

I removed the boiler to confirm the heating element was shot but can't see any cracks or damage, it is possible that they are between the coils but really it looks to be in very good condition. After doing this I was concerned that perhaps it is something else that is tripping the machine and I am reluctant to order a new boiler.

Playing around with a multimeter with the boiler full of water (removed from the machine) I get a resistance of about 2 M Ohms between the terminal and the boiler itself. Is that acceptable? I am also concerned that the breakdown may only happening at high temperatures and hence I won't be able to test it.

I also note that it is not a problem with the trip circuit as (stupidly) i plugged the machine into a non earthed circuit and got a shock :shock: about half way through making a coffee (when I was steaming).

I should also mention that I am getting a 50 Ohm reading across the two heating element terminals. (I don't know if that has any relevance to my problem but I thought it seemed a bit high).

Any advice would be greatly appreciated.

Thanks!!!

Posted February 15, 2014 link


Even tho the element itself looks like it's in good shape it can still be shot.  It's the Nichrome inside the element that overheats and or breaks.  I've kept my Silvia on for hours even a full day a few times and it's never tripped anything.  I agree that you heat element is the problem.

This link may help you :)
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