1st-line has the part under a new part number. $99 new controller ( brain ) got everything fixed!

I have circumvented the "Brain". Everyfunction of the machine appears to work without it except when I pull the low water sensor wire, the heater still turns on. 1st-line, the only US dealer, no longer sells the "brain". I guess I will continue to operate this without the brain unless someone on her...

Almost a year later and I am back in the same situation as the OP. 13-14 ohms across the heater 0 ohms across the pstat water level light turns on when I unplug water level sensor The overheat sensor does red "button" is not depressed Am I down to a bad control box?

I didn't need to really dig far, the pressurestat had signs of burning and one of the contact covers was melted. I did run an ohm meter across it. No reading. Thanks for your help! {image}

Ponte Vecchio Lusso is not heating. The light inside the switch is on, both the low water light ( machine is full ) and the boiler light are off. Where do I start?

I thought brass fittings had a pretty universal thread, thanks for the info. I have been sourcing my parts from {link}

I found the answer to my steam problem in broken English here: {link} It appears filling the boiler before turning on the Oscar is not the way to go. The Oscar's heating element will not turn on until the boiler is filled so you can't burn out the heating element. Filling the boiler manually appears...

Same broken valve as you. "Nuova Simonelli Oscar broken HX inside of boiler?" Good chance you can find that nut at a good hardware store. I have an Ace near where I work that carries all manner of brass fittings

I finally figure it out! It was the retention valve. Here is a picture of the new part: {image} Looks like this may be a somewhat common problem with the Oscar: "Nuova Simonelli Oscar with brewing trouble" If anyone needs a 2 way valve, let me know, I have a spare. Now I have a

I was not sure how to take the 2 way valve apart. I just cranked on the top silver part using channel locks and and a rag around the cylinder so I wouldn't mark it up too bad. Here is the whole unit together: {image} Here is the unit apart: {image} Notice the compressor fitting on the