Kenmore Refrigerator Error Code R2 sensor

The R2 sensor code means the refrigerator's control board has detected an abnormal condition in Refrigerator Temperature Sensor 2, the sensor that monitors the middle section of the fresh food compartment. The fault indicates either a cut wire (open circuit) or a short circuit in the sensor or its wiring. This sensor is responsible for feeding temperature data to the control board so cooling cycles can be properly managed. Without a valid signal from this sensor, the refrigerator may not regulate temperature correctly.

It is not recommended to rely on the refrigerator for food storage while this error is active. Because the R2 sensor monitors the middle compartment temperature, a faulty reading can cause the refrigerator to undercool or overcool that zone without any indication. Food safety can be compromised if the compartment temperature is not being accurately monitored and controlled. Address the fault as soon as possible to ensure safe food storage temperatures are maintained.

A reset may temporarily clear the error code from the display, but if the underlying fault in the sensor or wiring is still present, the code will return once the control board runs its diagnostics again. Resetting without repairing the root cause does not fix the problem and can delay proper diagnosis while the refrigerator continues to operate without reliable temperature monitoring. A proper repair at the sensor or CON7 connector is needed to permanently clear the fault.

Start by checking for a loose connection at connector CON7, as a poor connection is a common and easy fix. Unplug the refrigerator, disconnect CON7, and measure resistance between the Gray and Gray wires to test the sensor. A reading of zero ohms means a short circuit, while an open or infinite reading means a broken wire or failed sensor element. Depending on the result, you will need to repair or replace the wiring harness or the R2 thermistor sensor itself.

If the issue is only a loose connection at CON7, there may be no parts cost at all, just the time to inspect and reseat the connector. A replacement thermistor sensor typically costs in the range of $15 to $50 depending on the specific model. If a professional technician is needed for diagnosis and wiring repair, labor costs can range from $75 to $200 or more depending on your location and the extent of the wiring damage.