ReplicatorG header cap?

I have everything assemble and during the extruder test in replicatorG the software cap it at 154C when I set it to 220. Temperatur start to raise but once it hit that degree it just hang there for duration of my test.

So the problem turns out to be the fan and heatsink combo. When I disable the fan it is now reaching over 200. I have a new problem now and hopefully someone can help me out. When I load a model into ReplicatorG with a gcode of that item and when I hit print it start to print some other file and NOT the model I see. I tried resetting it and reuploading the Sprinter software a couple of time but every time it is printing the same model and is caching it somehow. Anyone have any idea why it is doing this?