Identifying a failing residential oven temperature sensor probe involves observing chronic baking inconsistencies and verifying component resistance with a digital multimeter. Common red flags include baked goods burning on one side, actual cavity temperatures varying wildly from the digital display, or preheat cycles taking an hour. First, disconnect electrical power for safety. Second, access the sensor connection plug behind the rear wall or control panel and test the terminal pins with a multimeter. You can troubleshoot sensor health safely. You can verify that your sensor is bad when confirming that the multimeter resistance reading deviates drastically from the standard baseline of approximately 1,080 ohms at room temperature, proving the sensor requires replacement.
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