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Auber PID installation in Silvia gone wrong - help appreciated!
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HaniS
Senior Member


Joined: 17 Oct 2013
Posts: 2
Location: Istanbul, Turkey
Expertise: I love coffee

Espresso: Rancilio Silvia
Grinder: Rancilio Rocky
Posted Thu Oct 17, 2013, 12:42am
Subject: Auber PID installation in Silvia gone wrong - help appreciated!
 

Hi all,

The Silvia is my first espresso machine and I have been using it for coming up on a year.  I live in Istanbul where there is plenty of fine Turkish coffee, but abysmal espresso options.  Having pulled hundreds of great, good, bad and horrible shots and worked out the basics of grinding, distributing, tamping, surfing, etc. etc. I felt ready to step up and PID my machine.

In short... it hasn't gone well so far.  My machine is open on the kitchen counter and I am on day 2 without coffee.  I don't have a lot of electrical experience but I have good instruction-following skills.  Here are the issues, appreciate any advice:

  1.  The PID is not activating the boiler when the temperature is too low.  Out of the box this was not the case, but on my third test run it no longer activated the boiler.  I spoke to the folks at Seattle Coffee Gear (where I purchased the PID) and they suggested double checking all connections.  I did so and one of the thick red cables connecting the SSR output to the original brew control thermostat cables was seriously frayed in my installation on the end connecting to the SSR.  I have since stripped the wire and tried to wire it directly to the SSR (see picture) - thinking this may have been the problem, but still seeing that the PID is not activating the boiler.  So two issues here - what is the right way to attach this wire to the SSR and what else could be broken in this setup?


  2.  If #1 is resolved then in my first two test runs with the PID the temperature did not converge to the set value.  The out of the box value was 217F and after an hour the system was fluctuating between 210 and 230F.  I have seen a number of posts on this so not sure if there is one best way to fix this.  Anyways at this point it is secondary to #1 above.

Many thanks...
Hani

HaniS: WIN_20131017_103943.JPG
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,853
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 Thu Oct 17, 2013, 3:51am
Subject: Re: Auber PID installation in Silvia gone wrong - help appreciated!
 

If the installation was done according to the instructions then I suspect that there are problems with the PID. I installed the Auber PID on my Sylvia and it worked perfectly right from the start. As to the wire, a connector is the way to go, just "tiring" it on is not a solid connection and it can arc and get hot, with a POSSIBLE outcome of a fire.

 
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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jonr
Senior Member


Joined: 25 Jun 2013
Posts: 298
Location: Americas
Expertise: I like coffee
Posted Thu Oct 17, 2013, 1:47pm
Subject: Re: Auber PID installation in Silvia gone wrong - help appreciated!
 

If you have a multi-meter, you can

1) check the resistance of the RTD
2) check that the PID unit is sending a low DC voltage to the SSR when heat is needed
3) check that the AC voltage across the SSR output pins drops from ~220V to ~0V when #2 is true
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HaniS
Senior Member


Joined: 17 Oct 2013
Posts: 2
Location: Istanbul, Turkey
Expertise: I love coffee

Espresso: Rancilio Silvia
Grinder: Rancilio Rocky
Posted Sat Oct 19, 2013, 12:24pm
Subject: Re: Auber PID installation in Silvia gone wrong - help appreciated!
 

All is good now.  Some of my parameters were mis-set based on some out of date documentation on the device, and I have crimped a new connector on the cable.  Hit my target temperature tonight and pulling the first shots in the morning.  Thanks.
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