Recently I started getting errors such as "extruder below minimum temp". Usually towards the end of the print.
I ran a few PID tuning, still had the same issue. The thermistor and heater cartridge seemed fine, however I replaced the dragon HF with a brand new Rapido.
Ran PID, checked printer.cfg if the new values were in place, sadly same thing happened again.
I'm starting to think that something is wrong with the board. Anyone got suggestionis?