Formerly QIDI Error
I have replace the USB-C cable, the extruder, the brass hotend, and the fan. I was originally going to replace the thermocouple. The thermocouple is part of the hotend. We have the parts if someone wants to take the old hotend apart to replace the thermocouple.
It appears the computer board called the adapter plate was damaged when the cooling fan shorted out. One more part before the printer is ready.