I’ve had a Gaggia Classic for a few years and over the last few months I’ve been having issues with the flow from the group head.
I think it might be an issue with the solenoid valve. There was some guidance I saw online about flicking rapidly from the group head to the steam wand, as this forces water through and clears any blockages. And yes this does seem to work - if I rapidly flick the switches the water suddenly flows a lot faster from the group head. But it’s not a permanent fix.
I’ve descaled it several times. Is there something else I can do, or does the valve need replacing?
In my experience, this is a sign that the solenoid has something inside it. Your best bet is to take it apart and do a full descale.
This video takes you through the whole process. https://www.youtube.com/watch?v=N9i-EH7qXOc
It’s not as big a task as it might seem, and it will definitely get everything flowing again
Thanks, yeah it does sound like the best option! Thanks for the link :)