Combines Not enough fan air on f 2

Have you looked at the air intake side of fanIJIJ You can get a lot of corn leaves that will block this off and the fan can not move much air....

I have also seen were the flap has gotten trash behind it and won't open all the way. Close it, and clean above it through the small holes on each side until you are sure that you can see the hinge again. Bean fuz and cobs like to hide in there and jam that area to where you think you are getting it all the way open.