Pump seems to be working, but no shot coming through portafilter.
We've had our Starbucks Barista for years and have used it regularly. Awesome machine. Recently though, we can't get a shot to pull. The pump sounds normal, so, we hear the pump push water into the portafilter, but then, the "swoosh" sound of when the pressure pushes the shot out never comes. Sometimes, water leaks around the portafilter, but most of the time, nothing comes out. When I release the portafilter, it either splats everywhere, but most of the time it is just water and grounds, or just wet grounds. I cleaned the portafilter as recommended on your site and reassembled, but this did not help. I also descaled the machine, and when I did this, I pulled a lot of water & solution through both the wand and the shower head, so I think the pump is ok. But, this did not help either. Any ideas?
Es esta una buena pregunta?
A bit late to the party, but here goes: I recently acquired a Barista machine in what seems to be excellent condition, just shy of pristine. The pump seemed to work - meaning it would buzz and a little water would come out, and the unit got hot. But, I assumed the problem was some sort of blockage in or to the pump, so I took it apart and cleaned what little calcification I found, which was in fact slight. The machine pumps water into the boiler, and both steam and water flow through the steamer tube. Some water - properly hot, runs through the brewhead, but not at pressure high enough to go through the portafilter, with a good deal of regurgitation through the outlet tube. Thinking the portafilter might be an issue, I tried it with a portafilter from another Barista I own. It didn't work. Clearly there is some blockage from the boiler to the brewhead, though I can't figure out what that might be. I ran a decalcifiying solution through the machine with not apparent improvement. Ideas, anyone?
- de J AR
I suggest that you try disassembly of the part that holds the port filter, there is a small hole spring loaded, before it goes out to the coffee cup, Be careful in disassembly as there is only one way to put it together, you can also try to push a very small blunt needle to see if it will open up and see if water will drip through. I had experienced similar problems.
one problem was that spring loaded one opening under the port filter, I had forgotten to put the basket filter in it and pushed grounds in it so that fixed that.
second problem was by steam part never shut all the way so I had to disassemble that part and soak it in citric acid, now it all works perfect again. as a preventative measure I drain the water from the steam thing and leave it open between uses.
Incidentally I have a spare unit, all but the accessories so I was able to narrow things down to the parts..
- de Alexander von Guggenberg