Rancilio Epoca DE 2 group espresso machine

Yes in answer to your question I had the machine serviced by a qualified Rancilio supported workshop. The problem was different as it involved replacement of the pump, but they also replaced two flow meters and adjusted the boiler cutout temp and pressure. The temp cutout seems to be a bimetallic switch but when the machine fails if i put a muti meter across the switch it shows a closed circuit which i would expect as the machine is not getting up to working pressure.