Hi I have posted this in the hardware thread as well but I am losing the will to live with this problem. I have had a Sapphire for about 3 weeks and it has give me intermittent almost from the beginning which I traced to a faulty wire to the Extruder thermistor. I changed it for one I got that looked the same and fitted it but now I don't think I am getting the correct temperatures because now though the front panel display shows the temperature I have set I get missive under extrusion and poor inter layer adhesion. I have checker for blockages in the filament feed. Does anybody know what thermistor is correct and a source for one?Cheers Gambo