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Gaggia Baby - self repair/blocked group head
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planetf1
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Joined: 26 Feb 2010
Posts: 3
Location: UK
Expertise: I love coffee

Posted Fri Apr 12, 2013, 12:17am
Subject: Gaggia Baby - self repair/blocked group head
 

Hi,
I have a Gaggia Baby and unfortunately yesterday hardly any water came out of the group head.
Water via the wand was full pressure.

I did it's first clean with proper coffee cleaner/blanking plate (reverse flush), made sure baskets were unblocked, also removed shower head and finally the 1cm thick block behind it attached by allen bolts. All good stuff but there is no flow from behind that - we're talking moderate drips at best rather than a near jet

My suspicion therefore is that the solenoid valve is blocked/misbehaving, or the section below the boiler (whatever it is called - is it the group head?) is blocked

On my previous gaggia I have stripped down the solenoid, split the boiler, reworked with new seal, but before things get messy, any specific recommendations?
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steamer
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steamer
Joined: 11 Feb 2005
Posts: 900
Location: socal
Expertise: I live coffee

Espresso: Expobar Brewtus IV R
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Vac Pot: Krubs Moka Brew, vacPot
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Posted Fri Apr 12, 2013, 8:15am
Subject: Re: Gaggia Baby - self repair/blocked group head
 

I have the Espresso model, except for the 3 way valve they are about the same I think. I took all my group head apart and ran the pump, I certainly do not get a near jet blast of water, but then I don't think I should either, But mine is very clean I think. 23 seconds of pump gets me 3/4 cup of water. Is that good or bad, I really do not know. I'm just adding my comments as a guide or baseline.
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jkoll42
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Joined: 2 Jan 2010
Posts: 465
Location: Pennsylvania
Expertise: I love coffee

Espresso: VBM DD V3, Gaggia Baby Class
Grinder: Cimbali Max Hybrid, Bunn...
Drip: Technivorm, Chemex
Roaster: Honey Badger 1K, HG/BM
Posted Fri Apr 12, 2013, 10:08am
Subject: Re: Gaggia Baby - self repair/blocked group head
 

I think you've done as much as you can without splitting the boiler.  Maybe you had some scale dislodge and get stuck.  Sounds like you're farmiliar with the  whole process, so time to get messy.  Might as well replace the gaskets while you have it open!
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tracerbullet
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tracerbullet
Joined: 13 Feb 2012
Posts: 168
Location: Saint Paul
Expertise: I love coffee

Posted Mon Apr 15, 2013, 12:59pm
Subject: Re: Gaggia Baby - self repair/blocked group head
 

I'm struggling to remember details on the water flow path but I think I would check around the solenoid. Possibly in a position that it's sending all of its water back to the reservoir, possible that something is lodged in that area in one of the two holes leading to or from the solenoid where it's attached to the boiler.

If you end up certain that it's flowing through the solenoid properly than all that is left is something clogged in the lower half of the boiler itself.
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