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Topic: Gaggia Classic: 2 problems (8 msgs / 201 lines)
1) From: A
I am having 2 issues with a new machine. (The first machine i got was even =
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more defective and I exchanged it for a new one so I don't want to bring an=
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other back):
1)water comes out of the steamwand (1-2 tabelspoons in amount) no matter ho=
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w many times you bleed it, so there is a lot of water going into my milk. T=
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his happened with the first machine too. i have removed the silly Panarella=
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wand and it still happens.
2)on this machine, there are 5 holes on the grouphead that water comes thro=
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ugh to make the espresso. 2 of them produce little or no water stream so wa=
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ter is coming out unevenly from the top screen when it hits the coffee. the=
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Gaggia tech claims it doesn't matter. I don't think that could be right. I=
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t would be entering the coffee very unevenly this way. Any ideas how to get=
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the water to go thruogh all 5 holes?
Thanks all    =
      =
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2) From: Sandy Andina
Have you disassembled the shower screen and grouphead disk and reamed  
out all the holes with a needle?  A Gaggia can be at least water- 
backflushed: that might help.  Sounds to me that scale might also be a  
problem, in the steamwand as well--maybe even the boiler.  Something  
is also keeping the boiler from generating enough pressure to make dry  
steam; have you considered replacing the p'stat?  You might start by  
soaking the nozzle of the steamwand in very hot water, perhaps with a  
little Cleancaf or citric acid, changing the soaks when the water  
starts to cool, for a couple of hours and then using it to bring a  
pitcher of clean water to a boil. Ream the nozzle holes out before and  
after the soak. You might be surprised how much crud comes out.
On Oct 16, 2008, at 2:16 PM, A wrote:
<Snip>
Sandy Andina
www.myspace.com/sandyandina
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3) From: Dave Bush
I have a Gaggia and after a while the valve above the group head accumulates crud and needs to be cleaned. It's easy to disassemble with a screwdriver and a box end wrench or socket. It's more effective than using the cleaning products, although it's not a bad idea to run through some Cleancaf, too. Give this a try and see if it resolves your problem. If not, email or call Gaggia tech support. They're pretty helpful from my experience.
Dave
On Thursday, October 16, 2008, at 02:37PM, "Sandy Andina"  wrote:
<Snip>
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4) From: raymanowen
"...there are 5 holes on the grouphead that water comes through to make the
espresso. 2 of them produce little or no water stream so water is coming out
unevenly from the top screen when it hits the coffee. the Gaggia tech claims
it doesn't matter. I don't think that could be right. "
   1. You couldn't actually see the water flow while it's brewing a shot.
   2. How did the shot taste when you brewed it?
   3. As the tech said, it's not in the brewing configuration. What were the
   expectations? What are the open circuit flow rate and temperature?
The dispersion screen exists, I think, to keep the fine coffee grounds from
floating off the top of the puck up into the group passages and valve
assembly.
If some 45rpm records didn't sound right on your new record player, and the
replacement sounded worse with a terrific "Wow" in the sound, you might
conclude the speed setting was rong and the 45rpm spindle wasn't installed.
Cheers, Mabuhay -RayO, aka Opa!
Got Grinder?
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5) From: Howellite
In reference to #1, I had a Gaggia Classic and it always leaked some water
out of the steam wand.  It would only leak about a teaspoon full while the
machine was warming up for 30 minutes.  I even replaced the steam valve and
it did not fix the problem.  Note that this also happens for my new Silvia.
Paul Andres

6) From: Mike Koenig
My Silvia will leak from the steam wand when it cools and re-heats
after I close it while hot.  When the valve cools, it contracts a bit,
causing the valve to open up slightly.  A gentle tighten after the
machine cools will solve this.
These are compression type valves, and overtightening them will damage
the seat, so don't wrench on the knob to get the leak to stop.
--mike
On Fri, Oct 17, 2008 at 9:20 AM, Howellite  wrote:
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7) From: Allon Stern
On Oct 21, 2008, at 12:33 PM, "Mike Koenig"   
wrote:
<Snip>
So when the machine heats up again and the valve expands, won't this  
cause it to over-tighten?
Might it be better just to live with a little leakage as it heats?
-
allon
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8) From: Mike Koenig
Actually,  I got that bass ackwards.  (that's what I get for typing
mails at work, while other things are going on).
What happens is actually that you tighten the valve when the machine
is up at steam temp, then if you turn off the steam switch it cools
down to brew temp, and the valve contracts slightly, making it leak.
Thanks for catching me on that, Allon..
--mike
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