The 3D printer offers a mono LCD screen, a press and rotate all-in-one knob. By pressing and rotating the knob, you can control the printer.
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Why is there noise in the power-on unprinted state?
When the 3D printer is powered on, the hot-end cooling fan will run continuously. This is the original design, not a fault. Please note.

By moving the print head to the X/Y/Z axis original point, you will know whether the 3D printer motion system works properly.
Press the knob to enter the main menu, then go to menu "Motion" → “Auto Home” ↓
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The print head will go to the original position of X/Y/Z axis ↓
After the leveling sensor touches the build plate twice, the print head will stand still, it means "Auto Home" done, also means the motion system works well.
Go to menu "Temperature" → "Nozzle", set it 220;
Go to menu "Temperature" → "Bed", set it 60.
![]() Set the nozzle and bed temperature to be 220 and 60. |
![]() Wait for about 10 minutes, the temperatures will raise to the set values. |
If the temperatures reach the set values in ten minutes, it means the heating systems work well.
If not, it means there has been a malfunction in the heating system.