We called sportcraft, and after they sent us a new circuit board, and that didn't work, they sent us another different circuit board, and that didn't work, and then we tried what NJM said, and that worked.
(Plug in the treadmill, push the ON/OFF switch to ON and insert the safety key. Now press the MODE and STOP button simultaneously. Without releasing the buttons take out the safety key and insert it again. Now you should hear a beep and the display will come on. Release MODE & STOP & Press the Speed increment (+) button. )
One problem, the motor is too weak for my weight (240lbs). My tiny fiance can probably use it though.
Joe
June 2008