Tried as you instructed. No response. I purchased from an auction. But when I first looked at the machine I sat on it, it turned on, tested the controls and then turned it off. After the auction, about three weeks later went to pick it up and it turned on but as soon as I went to move it everything shut off (except working lights still worked) and the screen on left went into shut down mode. Now after charging battery, still no response. Don't think I can get the operator code you mentioned.