Respuesta a "How do you change"See Breville Dual Boiler (BES900/BES900XL) Group Head Collar Insert Replacement Guide
Respuesta a "Why is my steam wand leaking"Mine is leaking water rather than steam. But maybe a water leak comes from the same root cause? I determined that the plastic handle has worn and the steam control lever now moves beyond the valve's fully closed position to a position which is partially open. So if you back up the lever a few degrees it might stop the flow. I have yet to figure out if there is a way to replace the plastic lever/handle piece.