GE WB23T10015 Range/Stove/Oven Temperature Sensor

The GE WB23T10015 is a genuine replacement temperature sensor designed for compatible GE ranges, stoves, and ovens. The sensor's job is to provide the oven's control board with a real-time resistance reading that corresponds to the cavity temperature — the board uses that data to cycle the heating element on and off and hold the set temperature accurately. When the sensor drifts out of calibration or fails outright, the control board loses its feedback loop: the oven may overshoot, undershoot, or refuse to heat at all. A failed sensor also triggers F3 and F4 error codes on GE control panels, making it one of the most directly diagnosable faults in an oven's electrical system.

This is a repair well within reach of a confident DIYer. The sensor mounts inside the oven cavity at the back wall, held by two screws and a wire harness connector — total installation time for someone doing it for the first time is typically under 30 minutes with the oven unplugged and cooled. Using a genuine GE part rather than a third-party equivalent ensures the resistance-temperature curve matches exactly what the control board expects, which matters: a sensor with a slightly different calibration can cause the same inaccurate temperature behavior it's meant to fix. Confirm your range's model number against GE's parts reference before ordering.