GE Refrigerator Error Code r dS

The r dS error code on a GE refrigerator indicates a defrost sensor fault in the refrigerator compartment. The defrost sensor monitors temperature during the defrost cycle to prevent the evaporator from overheating. When the control board detects either a short circuit or an open circuit (disconnection) in this sensor circuit, it triggers the r dS code and interrupts normal defrost cycle operation. Without accurate sensor feedback, the refrigerator cannot safely execute timed defrost cycles, which can lead to frost buildup on the evaporator coil over time.

The first diagnostic step focuses on connector CON7, specifically the Orange-to-Orange and Gray-to-Gray wire pairs that carry the sensor signal to the control board. A loose or corroded connection at this connector is one of the most common causes of this fault and should be inspected before replacing any components. Gently reseat the connector and check for bent pins, corrosion, or damaged wire insulation at the connector housing.

If the wiring and connector check out, the defrost sensor itself may have failed internally. A shorted sensor will show near-zero resistance, while an open sensor will show infinite resistance on a multimeter. Either condition falls outside the acceptable operating range for the sensor and will sustain the r dS error code. Wiring harness damage between CON7 and the sensor, such as pinched or chafed insulation, can also create intermittent short or open conditions that trigger this fault.