Nautilus Recent Questions, Troubleshooting Help & Support

Depends on which plug blade is horizontal and which is vertical. You know that on a standard 2-blade plug, one blade is wider than the other. The wider one is the common and the narrower one is the hot wire. If the hot wire blade is the one turned sideways, then the treadmill is a 20 amp 220v appliance. If its the common blade that's turned flat or sideways (the wider one), then it's a 20 amp 125v appliance. The fact that the motor is rated at 230 volts doesn't mean much in this case. The motor is a DC motor and the electronics may provide varying voltages for it for different running speeds. The motor likely may also run on pulsed DC.

Heat sensor on motor is shorted out. Will have to replace thermistor or whole relay assy on motor sounds like. Not hard to do.