11.4 Nozzle cleaning

• Use a wire brush to clean the nozzle from outside. Heat the nozzle before you do so.
• If filament is not extruded from a nozzle or in very small volume, check first the extruder fan is working properly and the temperature is set correctly (PLA 210 °C; ABS 255 °C, HIPS 220 °C, PET 240 °C). Also check filament was loaded into the extruder and wasn’t stuck before the nozzle.
• If the filament pours out at least a little, check its direction. If it swirls and goes up to the hotend you need to clean the nozzle.
• First you have to move the extruder to the rightmost position, out of the heatbed to reach the nozzle from below.
• Heat the nozzle according to filament you want to print from, load the filament and put a thin wire (0,3-0,35 mm) into the nozzle from below - between 1 and 2 cm deep.
• Choose Load filament option for the LCD menu and check if filament is extruded properly.
• Put the thin wire to the nozzle again and repeat these steps few times more. When filament is extruded properly, nozzle is clear.