I picked up a new to me D300VS recently. I've been trying to figure things out on it, but keep coming back to some heater faults.
I've done PID tests several times, always from room temperature. Heated bed heated up to operating temp, 60%. And the hot end close to the plate, fans on.
I will do a test print, just a simple first layer print, and I'll get a heater fault as its coming up to temp. Its always a temperature rising too slowly fault.
I can reset the fault and continue the print, and it will start to print. However, I also get a temperature excursion exceeded 15C (target 225, actual 245).
I'm getting a little frustrated with the heating operations.
My question is thus. What should I be looking at to correct this issue. Should I look at replacing the heater cartridge or the thermistor?
Here is my heater charts.
The first chart is the heater scaling up and then it appears to go crazy. Doesn't seem to be stable.
The second is the print over time, and then finally the spike I see when it throws the error.
here is my config file.