check the power jumper cable between the smoke generator and the tower and reseat both ends making sure there fully seated, ten turn on, adjust the temperature all the way up,,,,give your self a few minutes and check the heater in the bottom back of the smoker, it should be glowing red,
if it is not we need to figure out why,,, a few things to check
1) heating element should be between 28 and 32 ohns, check with ohm meter
2) power getting to the element , check with volt meter
3) check for any loose connections and re attach in proper location
if none above works, call Bradley