I've had my printer for bout 5 months and I've had some pretty consistent prints. I use it pretty often.
Been using it a lot this week but tonight the hot end has decided to stop heating up.
It tells me an accurate room temperature.
Sometimes when I pre-heat the hot end, it will heat up but immediately stops working when I begin a print. Other times I cannot even pre-heat the hot end. It always shows a temperature that appears accurate (room temperature, climbs at its usual speed when it does heat up).
I have made no changes to the software or hardware. I recently tightened the belts but I've had 2 successful prints since then, otherwise the hardware has been the same. I haven't even removed the SD card or made any changes to any software setting.
All the wires and plugs appear to be seated properly. I don't see any scorch marks or any damage anywhere. Any ideas?