Question about Gaggia Classic Espresso Machine
I had the same problem: clean showerhead, machine pumps hot water just fine,
but very little brewhead flow. Descale made it worse but that was a big
clue! I took apart the brewhead and found grains of scale in the
boiler, like pulverized beach shell:
Some of those bits apparently made their way into the three way valve and clogged it. I could not blow air through the channel between the plunger and the boiler. Not surprising: the inlet hole inside the valve is TINY and clogs easily.
Once I got this part cleared up inside (and cleaned out the rest of the scale from my boiler so it didn't immediately re-clog!), my brew flow was restored.
Posted on Jul 12, 2013
I had the same issue. what fixed it for me was doing a backflugh. after back flashing 10 times stopping and going for 2 seconds apart fixed the pressure issue very little water was coming out for me. i used the pressurized basket and stuffed cardboard paper inside and in the portafilter and backflushed many times now my gaggia works like new i even get 2oz per 30seconds pulls. i wish i didnt backflush before i also cleaned the brew head assembly used allen wrench 13mm to took off the hole basket but mine was like new because of not a lot of use .
Posted on Feb 03, 2014
Sounds like it needs a descale.
Scale and build up restricts water flow causing low pressure.
Posted on Feb 05, 2010
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Posted on Jan 02, 2017
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