Prosoft Plus Pro-Form 500i treadmill model no. 83129604.0 Icon Health & Fitness Inc. Serial no. T983345054. When pushing the start button, the lighted digits appear, but the treadmill does not. Also, the fan and the incline do not work. It was all right just a day before this happened. Same problem as Sue recently posted!

Go inside the panel
Take the power connector off that is connected to the circuit board and plug it in different types of ways left side in first
You will notice the display in the front will come on
As you try different positions on the connector hit the speed button every time you move it
Now placed the connector back on but don't put it on all the way still continue to hit the speed button after a few times you will hear this speed button beep
Now pushed the connector in all the way Problem solved Go inside the panel
Take the power connector off that is connected to the circuit board and plug it in different types of ways left side in first
You will notice the display in the front will come on
As you try different positions on the connector hit the speed button every time you move it
Now placed the connector back on but don't put it on all the way still continue to hit the speed button after a few times you will hear this speed button beep
Now pushed the connector in all the way Problem solved