Question about Gaggia Coffe Deluxe Coffee Maker, Espresso Machine
When making a coffee from my Gaggia Coffee Delux machine water comes out very slowly, sometimes only dripping and the pump makes a differant sound.It does not seem to have the same pressure as it did when new.
The most likely reason for poor flow through the brewhead is a blockage in the outlet valve.the outlet valve is behind the shower disc holding plate and can be removed with 13mm socket. a straightened paper clip needs to be insrted in the outlet to clear any internal blockage,then pump water through. if the outlet valve splits in two ensure the rubber bung is inserted upwards.once refitted all should be fine
Posted on Aug 07, 2008
Sounds like the water line or pump is plugged or clogged. The line to the pump may also be clogged and that is sometimes harder to clean. In some locations the water supply has a heavy mineral content in it and "scale" builds up inside. Usually you'll be able to see this as white flaky material around the spiggot or look inside the tank. If you see this try this old home remedy. Fill the maker with 50% "white vinegar" and 50% Water and make sure you run some thru the whole maker if you can. (you can actually use 100% white vinegar if you want.) White vinegar is nothing more than "natural" acetic acid. It will dissolve the "scale". Works great on other things too. But takes awhile to work. Leave it in overnight but don't heat it. If that doesn't clear it up the first time, heat it up to warm but don't boil it or your coffee will never taste the same. Allow it to stay warm for several hours if you can. Then rinse with cold water several times. If all this doesn't solve the problem then you'll need to take to a repair shop and most likely replace the pump.
Posted on Jul 15, 2007
I just had my Evolution apart down nearly to the last threaded anything for this problem. It was a stuck steam check valve (called a boiler valve in the drawings). A small piece of scale had wedged it's way in there last time I used the wand (which is almost never) and it wouldn't allow the water to flow through. A simple dismantle and clean was all it needed, I took the opportunity to clean the boiler chamber, screen, screen holding plate and group body as well. It's amazing how much coffee finds it's way up into that stuff if you really fill the portafilter full. I even took the pump out and blew compressed air through it to dislodge any bits of calcium that may have formed.
One thing I hadn't done in the past was run the pump with the portafilter off so really didn't know how much flow to expect. Once it was clean and back together, with the screen removed I get 4 pretty steady streams out of the plate holes. It will fill a 100ml beaker in around 30 seconds.
It works better than new now but I think that's probably because I've learned the method I like best to make a couple shots. It was informative, I now completely understand the workings of the entire machine and it's pretty dirt simple, guess I'll keep using it even though it's reputation isn't the best.....
Posted on Sep 03, 2015
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