Video to show removal of damaged 54mm silicone group head gasket from Sage Barista Express. The machine was struggling to build full infusion pressure (9bar) and water had started to leak down the side of the portafilter during infusion stage before going into the pressurised extraction stage. When the machine would normally see an elevated pressure after pre-infusion, our machine wasn’t building pressure. We had also found fragments of the silicone in the drip tray that had torn away from the gasket. The video shows removal of the seal after first removing the shower plate that is held in place with a short machine screw. This machine screw was removed using a 4mm Allen key. The video then shows how we found the underside of the group head arrangement had started to corrode where the coated surface was bubbling and corrosion was coming through. When I removed the shower plate I found fragments of white ‘powder’ that I initially thought to be limescale. I then realised it was corrosion. The seal I’d bought to replace the shower plate gasket was also the wrong size so I sent this back. If you are watching this to get instructions on how to replace the 54mm gasket, then remove as I did in the video, put the correct size replacement gasket in and reassemble. I’d advise getting a genuine replacement as the seal I bought from Amazon was the wrong size and it looked like a substandard quality. I’d advise getting the genuine Sage replacement silicone gasket for the Sage Barista Express (link in comments). We ended up, because of the corrosion we found on the underside of the group head, taking the machine back, getting a refund and buying a new machine: The Barista Express Impress. 👍🏻
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Sage Barista Express Low Pressure and Water Leaking From Group Head Replacing 54mm Group Head Seal☕️
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