make sure your hotend and your hotend thermistors are in the correct place on the controller, and aren’t shorting to each other
manually try just turning on the hot end, does it reboot every time (eg send the printer a M104 S190)
It could just be your power supply is to weak.. heated bed is fine, but heated bed + hotend it to much and browns out the controller.
manually try just turning on the hot end, does it reboot every time (eg send the printer a M104 S190)
It could just be your power supply is to weak.. heated bed is fine, but heated bed + hotend it to much and browns out the controller.