I recently purchased a FFCP and have been having issues with the extruders that stop extruding during printing. The printer continues going through the motions but no filament comes out. I then stop the print job and go through the filament loading process and the extruders extrude just fine. At first I though it was possibly a corrupt file but I have tried it with several models. Usually it happens with bigger models but extrusion works fine for about 5% to 10% into the print and then just stops extruding. I am wasting a lot of filament and this is becoming very frustrating.

I do not hear any "clicking".
This can happen with either extruder.
I am using the ABS filament that came with the printer.
The extruder temp is set to 225 degrees.
The speed is set to 40

Thank you in advance for your help
Bill