planetf1 Senior Member Joined: 26 Feb 2010 Posts: 3 Location: UK Expertise: I love coffee
Posted Thu Apr 11, 2013, 11:17pm 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?
steamer Senior Member Joined: 11 Feb 2005 Posts: 908 Location: socal Expertise: I live coffee
Espresso: Expobar Brewtus IV R Grinder: E37S and a K3 Vac Pot: Krubs Moka Brew, vacPot, and... Drip: TechV, and many more Roaster: Hottop
Posted Fri Apr 12, 2013, 7:15am 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.
jkoll42 Senior Member 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, 9:08am 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!
tracerbullet Senior Member Joined: 13 Feb 2012 Posts: 168 Location: Saint Paul Expertise: I love coffee
Posted Mon Apr 15, 2013, 11:59am 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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