I have an early model 3020. Just recently I ran into a problem with nothing happening when I pressed the start button. I have troubleshoot numerous issues however I have run into one that I cannot resolve. With the key in the off position, I have power to all the proper terminals on the starter solenoid. What stands out is that the terminal labeled "S" has power to it as well. When I turn the key on, all terminals on the start solenoid indicate power, and both wires to the start button indicate power as well. Initially I suspected a bad solenoid and replaced it. The tractor attempted to start but was a little cold at first. 30 seconds later I pressed the start button again and "nothing." Checked the terminals on the solenoid and once again the yellow wire attached to the "S" terminal indicates hot with the key switch off. Any help would be greatly appreciated.