There's always a way to PID it. Run the heating element separate from the built in controller with the pid and thermosensor controlling the temps. You can even tap somewhere, use liquid gasket to seal your new connection and have a thermosensor right in the boiler.
Great looking little machine, so eventually it's bound to make someone happy.
It's not a single boiler machine as jargon in this universe would suggest. While it technically HAS a single boiler used for steam and hot water, it IS a heat exchanger. The brew path includes a head exchanger pipe (the water in the brew path is heated by passing through this pipe that passes through the boiler), so that's why the thermometer was introduced a while back. It reads the water temperature at the grouphead. A PID on an HX doesn't really make sense IMHO, especially if you have a read out of the water temperature hitting the puck. You do need to learn how to dance with the water... Which as long as you know how long to flush for, you're good to go. Like most machines, you learn the machine's nuances and it will reward you with EXCEPTIONAL espresso, no doubt.
Tony, is "bumpi" an Italian for bump? :)
It is amazing to me that it is still available. This is a great machine. I'd buy it myself if I didn't have too many myself.
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