lrp brushless question
 

Ok i am new to this brushless and lipo thing but am not new to rc cars. I got a really good deal from my hobby shop on a lrp tc sphere speedo. My question is the fan always on, because as soon as i turn the system on the fan comes on. i am running it in a RT-5 with a trinity duo2 13.5 and a thunder power 40c 4400 lipo.