Extruder screw is NOT rotating

In this article is described what what could cause the screw not to move and how you can solve this.

Extruder screw is rotating, but NO output

In this article is described what could be the cause that there is no output even though the screw is turning.

Output rate varies

In this article is described what could cause the output to vary and how you can solve it.

Lower output than expected

In this article is described what could cause a low output and how this can be fixed.