That air intake at the front looks to be directed into the envelope around the stove and not supplying the fire. Does air come out of those slots on either side of the door if the fan is running? If so the air supply opening for the fire is somewhere else.
This is my stove. The gold knobs on the doors regulate the air intake to the fire and air is circulated throught the outer envelope by that fan on the right. Your set up will be similar, you need to see how the fire is fed.
Uploaded with
ImageShack.us
If this is a new- to-you installation, you need to check out that chimney as it more than likely needs cleaning. Not a fun job but not that difficult either. I clean mine every fall. And never burn softwood, especially pine.
Edit-- on second look at your picture, the air intake is through that upper inlet. The fan blows through those lower openings and out the stove sides. Which would mean the air for the fire comes up through the floor and washes that window (to keep it clean). Look for that opening in the floor/front wall and clean it out. That makes sense as that rod on the right allows you to regulate the air to the fire.