There are filament residues inside the throat, causing insufficient heating and preventing filament melting, which leads to filament jamming and inability to feed.

1.Unload filament.

2.Press tube fitting on both ends and remove the filament tube.

3.Select “Preheat PETG”, heat the nozzle to 230℃.

4.Use a 1.5mm L-swrench to insert into the nozzle and extrude the remaining filament residue to clear the blockage.

5.Reinsert the tube into the bottom; approximately 6cm deep. Ensure it is fully inserted to avoid future blockages.