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Gaggia Classic leaking pressure during warmup
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Refefer
Senior Member


Joined: 22 Dec 2013
Posts: 1
Location: San Francisco
Expertise: I love coffee

Posted Sun Dec 22, 2013, 3:30pm
Subject: Gaggia Classic leaking pressure during warmup
 

Hi there,

I have a 10 month old Gaggia Classic that currently leaks pressure and water when turned on for heating up.  It started somewhat randomly this morning after successfully brewing a cup, turning it off for a bit, then turning it back on again to brew another cup.

In detail, I switch on the machine and slowly a hissing sound starts building up, coming from the grouphead.  Given a few moments, you can start seeing the steam escaping as well as some water drips.  Now, when the machine is switched to brew, water comes out although with very little pressure.

Any ideas what it could be such as a stuck valve somewhere?  A nut that needs twisting?  If possible, I'd love to be able fix it myself if for no other reason that the machine is only $300 or so.
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D4F
Senior Member


Joined: 15 Mar 2012
Posts: 2,015
Location: USA
Expertise: I like coffee

Espresso: Gaggia Classic PID
Grinder: Baratza Forte-AP
Posted Sun Dec 22, 2013, 4:17pm
Subject: Re: Gaggia Classic leaking pressure during warmup
 

Hi, welcome to CG.

What is the maintenance history, descale and backflush?  What water do you use?  Did you start by filling the boiler with water through the steam valve and wand, so that it is topped off?  Does the 3 way seem to relieve pressure normally after brew and give a good drip tray flow?

Most Gaggia Classic problems aree fairly easily customer repaired :)

 
D4F also at
http://www.gaggiausersgroup.com/
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jonr
Senior Member


Joined: 25 Jun 2013
Posts: 298
Location: Americas
Expertise: I like coffee
Posted Sun Dec 22, 2013, 9:17pm
Subject: Re: Gaggia Classic leaking pressure during warmup
 

The 3-way valve and related passages may be clogged.  Descaling with acid might fix it.
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