Hey, all. I've been having an issue with my Prusa where the hotend thermistor would read at max temp all the time. I ordered some new thermistors to rule out a faulty one, and thought I was making headway when the new one read 0 degrees. Come to find out, my thermal paste was shorting the wires together. I cleaned it all off, and the new thermistor was reading around 357 C when cold. I did some looking around, and it seems that this is a prime symptom of having shorted the thermistor circuit to 12V. Is there a way to test the RAMPS board/Arduino to see if this is the issue, or am I looking at buying a new board to rule that out?
Any help would be greatly appreciated.
Any help would be greatly appreciated.