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Kalkhoff
@youClown
Having an issue with the pressurestat in my old Fracino HX machine, it sticks and doesn't shut the boiler off when it should. Figure I might have to replace it (though cleaning the contacts worked the last time), but its a Sirai and those are expensive/hard to find. I've read Mater's aren't so bad and they're a lot easier to get ahold of. Anyone have experience swapping a Sirai pstat out for a Mater; given they're both just pressure-activated switches is it just a case of take the thing out, put the new thing in, connect the wires back, and done? I'm presuming the thread sizes for the diaphragm end are standard..?