Testing a residential oven temperature sensor probe to determine if it is failing involves performing an electrical resistance check with a digital multimeter. First, disconnect electrical power to the oven by turning off the dedicated circuit breaker for absolute safety. Second, open the oven door, remove the screws securing the sensor probe inside the back wall of the cavity, and pull it forward carefully to disconnect the wiring plug. Third, set your digital multimeter to the ohms resistance scale and touch the meter probes to the sensor connector pins. You can troubleshoot sensor health safely. You can verify that your test is successful when the multimeter registers approximately 1,080 ohms of resistance at room temperature (70 degrees Fahrenheit), confirming the sensor is healthy.
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