GE Refrigerator Error Code 3

Error code 3 on a GE refrigerator indicates that all temperature sensors in the system are simultaneously reading resistance values above 45,000 ohms (45K ohms), which is outside the normal operating range. Temperature sensors (thermistors) used in GE refrigerators are negative temperature coefficient (NTC) devices, meaning their resistance decreases as temperature rises. A reading above 45K ohms suggests the sensors are reporting an extremely cold or open-circuit condition, which is not consistent with normal refrigerator operation. Because all sensors are affected at once, a single failed sensor is almost certainly not the root cause.

When all sensors fail simultaneously, the most likely culprit is a wiring or connector issue rather than multiple sensor failures occurring at the same time. The 6-way RAST connector at the power/control module is the first point to inspect because it is the shared electrical junction between the sensor harness and the control board. A loose, corroded, or improperly seated RAST connector will interrupt continuity to all sensors simultaneously, producing the uniform high-resistance reading that triggers this code.

If the RAST connector checks out and the wiring harness shows no damage, the power/control module itself may be failing to properly read or supply reference voltage to the sensor circuit. In rare cases, a wiring harness that has been pinched, chafed, or damaged during installation can sever the common ground or reference line shared by all sensors, producing the same result. A systematic check starting at the connector, then the harness, and finally the control board is the recommended diagnostic path.