Totally loving this thread thank you to all who have contributed! I have a 1997 Starbucks Proteo Barista machine that just started having issues. I was wondering if you all could help me diagnose the issue? I read the troubleshooting pump/brewing page on espressocare.com a few times over. The pump seems to be working as I can properly prime the machine. Water does initially come out of the grouphead. However the flow seems a little diminished, and as the machine runs it continues to get hotter and bubbles/steams eventually. Has anyone experienced this? Diminished flows + too hot? I am guessing that the pump is weak and not pushing water through quickly enough to prevent it from overheating or there is a wire that is tripped/not operating to tell the heating element to stop heating. Thanks!