Kenmore Refrigerator Error Code D-Sensor

The D-Sensor code means the control board has detected an abnormal reading from the defrost temperature sensor, specifically an open circuit or short circuit condition. This sensor monitors the evaporator coil temperature during defrost cycles, and the board cannot operate the defrost system safely without a valid reading. The problem may be in the sensor itself, the wiring, or the connector at the control board.

A power reset may temporarily clear the error code from the display, but it will return if the underlying fault is still present. The control board will re-detect the abnormal sensor reading as soon as it runs its next diagnostic check. A lasting fix requires identifying and correcting the actual wiring, connector, or sensor problem.

If the fix is simply reseating a loose connector, there may be no parts cost at all. A replacement defrost temperature sensor typically costs somewhere in the range of $15 to $60 depending on the specific model. If the control board needs replacement, parts alone can range from $100 to $300 or more, with additional labor costs if a technician performs the repair.

Many cases of this error are caused by a loose connection at the CON6 connector on the PCB, which a knowledgeable DIYer can check after removing the PCB cover. If the connector is secure, testing the sensor wire harness for continuity and inspecting for physical damage are reasonable next steps. Replacing the defrost sensor itself is also a straightforward repair in most Kenmore refrigerator models.

Continuing to run the refrigerator with this code active carries some risk, because the defrost cycle may not function correctly without a working sensor signal. Frost can accumulate on the evaporator coil over time, reducing airflow and cooling performance. Food safety could be compromised if the unit eventually loses adequate cooling, so addressing the error promptly is recommended.