Kenmore Range Error Code 1d12

Code 1d12 means the lower oven temperature sensor is reading a resistance value above 2237 ohms when the oven door unlocks, which is outside the normal operating range. The control board treats this as a sensor circuit fault and shuts down all cooking functions in the lower oven cavity. A properly working sensor should read approximately 1000 ohms at 75 degrees Fahrenheit. The fault usually points to a defective sensor, damaged wiring, or a poor connector connection.

The lower oven cavity is disabled by the control board while this code is active, so using the lower oven is not possible and should not be attempted. If your range has a separate upper oven or a cooktop, those functions may still operate normally. It is best to resolve the sensor fault before attempting to restore lower oven use, since the control board cannot safely regulate temperature without a working sensor.

If the lower oven temperature sensor is the cause, replacement sensor parts typically range from $20 to $60 depending on the specific model. Professional labor to diagnose and replace the sensor generally adds $100 to $200 to the total cost. If the fault turns out to involve the control board rather than the sensor, parts and labor costs can be considerably higher, often ranging from $200 to $400 or more.

Many homeowners and DIYers with basic tool skills can diagnose and repair this fault. Start by disconnecting power, then use a digital multimeter to check resistance at the lower oven sensor terminals. If the sensor reads significantly above 1000 ohms at room temperature, replacing the sensor is a straightforward repair that typically involves removing one or two mounting screws and unplugging the connector. Wiring and connector issues can also be addressed without professional help if the damage is accessible and visible.

Resetting the range by cutting power at the breaker for a few minutes may temporarily clear the code, but it will return if the underlying problem has not been fixed. The control board re-checks sensor resistance each time the oven door unlocks, so a faulty sensor or damaged wiring will trigger the fault again during the next use. A reset alone is not a repair.