Extruder stops mid-print  

Extruder stops mid-print

Hello.

So i occasionly need to print longer prints if it matters - beacuse lately with shorter prints there have been no issues.

Butm when starting the print (ASA) everything seems to be normal, but few hours into the print the extruder just stops extruding, but the printer goes on and prints "air" as everything is normal.

I opened carefully the idler (mid print) and discovered that the extruder wheel is not moving.

Stopped the print and tried to extrude some filament via control, setting the temperature and moving E - nothing. Then basically did the same from the filament menu "purge filament" - nothing.

Did a reset for the machine and tried manually again - extruder works which means no blockage and motor is OK ?!

So i started the print again and what do you know it got further into the print (more layers) but yet again it from one point stopped spitting filament and just moved like everything is fine. Not extruding again.

Now is this temperature related (i doubt as i've printed PC with no issues) or is my extruder motor slowly dying ? 

Is there any settings i should double check ? I doubt in this one also as i do everything as usually.