Nuova Simonelli Oscar Isn't Pulling Water Through Grouphead Like It Should
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So the other day my machine stopped heating up. I assumed it was the heating element and I usually have a spare Oscar or 2 around for parts. So I went to pull the heating element and while I had it apart I did a full teardown/descale. But then when I went to grab the extra oscar I realized that it had the other type of heating element that has a different type of thermal fuse. So long story short, I had to do a full boiler swap. But then when I was putting the machine back together, I realized that the wiring is slightly different to account for the separate thermal fuse.
So I did what I thought was the correct way to wire it back up and account for that. But now the machine doesn't pull water through the grouphead like it should. I thought it was maybe the solenoid by the grouphead, so replaced that. That wasn't the issue. Then I thought maybe the pump was bad. But the grouphead pressure gauge shows it pulling just under 8 bars of pressure, and that's with NO portafilter or coffee for the water to push through. Kind of worried it has something to do with the way I accounted for that wiring situation. I've attached a video so you can see exactly what I mean. Any ideas of what could be wrong or help with addressing this is greatly appreciated.
Regards,
Ricky
So I did what I thought was the correct way to wire it back up and account for that. But now the machine doesn't pull water through the grouphead like it should. I thought it was maybe the solenoid by the grouphead, so replaced that. That wasn't the issue. Then I thought maybe the pump was bad. But the grouphead pressure gauge shows it pulling just under 8 bars of pressure, and that's with NO portafilter or coffee for the water to push through. Kind of worried it has something to do with the way I accounted for that wiring situation. I've attached a video so you can see exactly what I mean. Any ideas of what could be wrong or help with addressing this is greatly appreciated.
Regards,
Ricky
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