i printed 3 PLA objects and all works fine. But now on print four and five the same error occurs. the print starts very well but after 3 mins no filament came out the nozzle only minimal amounts. i reloaded the filament and the print starts again very well but after 3 mins the same error. The temperature is ok and there is enogh filament available.
thank you for your support
Is the extruder motor still running when the filament stops coming out?
If not it might mean the motor driver is overheating and switching in fail safe mode (ie stopping).
check if your extruder gear looses grip on the filament or has much drag in the filament guide.
thank you for your help, i checked all of this the motor… everything worked as it should…
And now i found the answer. The filament i bought from the the vertex reseller (www.conrad.de - renkforce filament) where i paid 46 euro per 750g PLA (very expensive…) the thinkness vary between 1,71 an 2,07 so there is no chance for the extruder to transport the filament.
i am very angry about that and my invoice is missing… 
thanks for your support
Just give them a calll.
I think you will receive replacement.
What filament did you buy?
I got the velleman PLA for about 30€ from Conrad.
Works quite well.
i will try…
i bought article 1093124 - 62 no other filament was available at the store. but i want to try the new built up printer… 
Maybe try one of these :
youprintin3d.de/filament/sparpack-abs-und-pla/
I had good results with it so far.
Although i use a E3D V6 3mm hotend …
You can always get your order number from their website, check your account.
thank you for your hints
i wil lhave a look at “your” the filament store.
i bought the filament at a real store, so i have no order number…
I bought one roll at ebay but here is the problem, that the coil is to wide and the hole to small.
maybe next year i have more luck…