GE Refrigerator Error Code 6

Error code 6 on a GE refrigerator indicates that the freezer compartment (FC) temperature sensor is reading a resistance value below 660 Ohms, which falls outside the acceptable operating range. Temperature sensors in GE refrigerators are negative temperature coefficient (NTC) thermistors, meaning their resistance decreases as temperature increases. A reading below 660 Ohms suggests the sensor is detecting an extremely high temperature, or more commonly, that the sensor itself or its wiring circuit has developed a fault that is pulling resistance abnormally low.

The FC sensor feeds real-time temperature data to the power/control module, which uses this input to regulate compressor cycling, evaporator fan operation, and defrost timing in the freezer section. When the module receives an out-of-range signal, it logs error code 6 to flag that temperature control decisions may be unreliable. This can result in the freezer running continuously, short-cycling, or failing to maintain proper temperature.

The first diagnostic step is to inspect the sensor connector at the power/control module for corrosion, bent pins, or loose seating. A shorted sensor wire, a connector with moisture intrusion, or a failed thermistor are the most frequent causes. Resistance can be measured across the sensor leads with a multimeter. If the reading is below 660 Ohms at normal freezer temperatures, the sensor requires replacement. If resistance reads correctly at the sensor itself but the error persists, the wiring harness between the sensor and module should be inspected for damage or short circuits.