My house almost caught fire as the circuit board to my proform i600 treadmill burned up and caught fire 1 month after the warranty was up and proform sent me a new circuit board to install myself.... I did but I thought I hooked up the new circuit board wrong because the treadmil still would not turn on so I paid 159 to have a tech come here to tell me icon fitness sent me a faulty circuit board that I hooked everything up fine it just was faulty for a second time.