Hugonl37 Where are the temp when this happens? Are there too much fluctuation ?
If you scroll up to my long post posted 2 days ago,
The long notes indicated two potential sources/fixes. These are from the historical Evo trouble shoots notes.
One was the brew circuit, which is again confirmed by Dave. As shown in bold letters, the leak may be unnoticeable to fix it. I think, perhaps, taking a tiny dentist mirror around the one-wave valve may help identify the leak (ie mist on the mirror).
The 2nd choice is reducing the PI pressure by a ¼ turn (lower PI). This was advised by Paolo to one of the users, who confirmed it as a fix. Perhaps, it is worth trying this.
