Geeetech A10 Extruder Fan Mountig direction

[Stonebull]

Dear forum,
I have a question regarding my Geeetech A10. In which orientation shall the extruder fan (the fan that`s always on to cool the filament intake) be mounted? Sucking or blowing? I am asking because I lately unmounted it and might put it on wrong afterwards.
Is the Geeetech sticker facing towards you or towards the heat sink?

Moreover I would like to ask if somebody encounterred the nozzle clocking up frequently during long prints and what you did to stop it from happening.
I am already printing(PLA, red from Geetech) at low temperatuers (190°). My retraction is set to 7mm, with 10 m/s.
I guess it could be caused by the flipped fan (if it is the case).

Thanks for your help.

[wotor]

It should blow air onto radiator

[Stonebull]

Ok, thanks!
Just one more question, does the sticker on the fan face towards you or towards the heat sink?
As the fan is very small and hidden in the cage I am not quite sure in which direction it is actually blowing...