K1 series/V3 series/Nebula screen/K2 Plus
This error is triggered when the nozzle heating element does not heat up as expected. Possible causes include:
Wiring issues with the hotend heating terminals, loose or damaged connections.
Internal damage to the hotend heating element, requiring replacement.
Heating terminal wiring issue: Check the wiring of the heating terminals, ensure connections are secure and undamaged. If loose or damaged connections are found, reconnect and confirm stable connections.
Heating element damage: If wiring is normal but the nozzle still doesn't heat, the heating element may be damaged and need replacement.
Check heating terminal wiring, ensure connections are not loose or damaged.
If wiring issues are found, repair and confirm stable connection.
Check heating element status. If wiring is normal but heating doesn't work properly, the heating element needs replacement.
Restart the printer, input 200°C at the nozzle temperature, and observe if normal operation resumes.