Markarian Senior Member Joined: 27 Jun 2012 Posts: 474 Location: Seattle Area Expertise: I love coffee
Espresso: Modded Nuova Simonelli Oscar Grinder: Vario-W, Mazzer Super Jolly Drip: Moka, Aeropress, Melitta 102 Roaster: Wear-Ever Popcorn Pumper
Posted Fri Jan 18, 2013, 12:46pm Subject: Re: NS Oscar problem. Leaking from safety valve.
Johnny, stupid question, but are you making sure to bleed the false pressure from the steam wand a few minutes after turning it on? The Oscar lacks a vacuum breaker so you've got to do this every time you power up the machine. Mine stays on 24/7, so I often forget to do this on the rare occasions it has to be turned off and then later back on again. Often times, the heating element won't kick on for more than a few seconds unless you do this.
Markarian Senior Member Joined: 27 Jun 2012 Posts: 474 Location: Seattle Area Expertise: I love coffee
Espresso: Modded Nuova Simonelli Oscar Grinder: Vario-W, Mazzer Super Jolly Drip: Moka, Aeropress, Melitta 102 Roaster: Wear-Ever Popcorn Pumper
Posted Fri Jan 18, 2013, 2:20pm Subject: Re: NS Oscar problem. Leaking from safety valve.
Another issue, which I'm loathe to bring up, but it is definitely a possibility is the autofill chip box or "brain." My machine's brain actually got doused with water during my boiler clean out while plugged in (don't ask) and the machine shorted and shut off! After drying, it began to work again. I would take the bottom panel off (while it's unplugged) and inspect the brain, maybe drying it out with some canned air and putting it in front of a fan for a few hours before trying again. I finally watched your videos and it definitely looks to be an overfull boiler, but the only reason it would continue to try and pump into it is because the fill probe was dirty (time for that descale) or the brain was on the fritz.
johnny4lsu Senior Member Joined: 27 May 2011 Posts: 78 Location: The Sticks Expertise: Just starting
Espresso: NS Oscar Grinder: Mazzer Super Jolly Drip: Clever, Chemex Roaster: Behmor 1600
Posted Fri Jan 18, 2013, 2:23pm Subject: Re: NS Oscar problem. Leaking from safety valve.
Well, i definitely had water everywhere during my descale and draining the boiler so maybe it did get wet. I just changed the probe yesterday so its brand new.
Ill pull the bottom off and check the brain!!
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
Markarian Senior Member Joined: 27 Jun 2012 Posts: 474 Location: Seattle Area Expertise: I love coffee
Espresso: Modded Nuova Simonelli Oscar Grinder: Vario-W, Mazzer Super Jolly Drip: Moka, Aeropress, Melitta 102 Roaster: Wear-Ever Popcorn Pumper
Posted Fri Jan 18, 2013, 3:58pm Subject: Re: NS Oscar problem. Leaking from safety valve.
I'm relieved to hear that! As you've found out, being an Oscar owner has its ups and downs. But when Oscar works, it's a truly rewarding experience. They're good machines for hands-on types and those who like pain with their coffee.
johnny4lsu Senior Member Joined: 27 May 2011 Posts: 78 Location: The Sticks Expertise: Just starting
Espresso: NS Oscar Grinder: Mazzer Super Jolly Drip: Clever, Chemex Roaster: Behmor 1600
Posted Fri Jan 18, 2013, 4:01pm Subject: Re: NS Oscar problem. Leaking from safety valve.
haha...I'm starting to learn that rather quickly. I sure do know a whole lot more about the inner workings than I did a week ago. I guess that's the positive in the situation!!
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
johnny4lsu Senior Member Joined: 27 May 2011 Posts: 78 Location: The Sticks Expertise: Just starting
Espresso: NS Oscar Grinder: Mazzer Super Jolly Drip: Clever, Chemex Roaster: Behmor 1600
Posted Sat Jan 19, 2013, 5:35pm Subject: Re: NS Oscar problem. Leaking from safety valve.
Update:
Well, the Oscar has returned as a grouch. Having a similar problem. The heat light won't come on again. I've checked the reset button numerous times and it's punched all the way in.
Not sure what to check or test this time. I used the machine to pull 6-8 shots today and it worked fine. It stayed on for 4 or so hours and I tried to make a drink and it started to have the problem.
suggestions?
Johnny
1 Corinthians 10:31 Therefore, whether you eat or drink, or whatever you do, do everything for the glory of God.
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