GE Refrigerator Error Code 0002

Error code 0002 on a GE refrigerator means the FF2 thermistor, which is the temperature sensor for the second refrigerator zone or fresh food compartment, is reading outside its expected range. The control board cannot interpret the sensor signal as a valid temperature. This can affect how the refrigerator maintains its set temperature.

A reset may temporarily clear the code from the display, but it will return if the underlying problem with the FF2 thermistor or its wiring is not corrected. Unplugging the refrigerator for a few minutes can reset the control board, but this should be used as a diagnostic step rather than a fix.

If only the FF2 thermistor needs replacement, parts typically cost in the range of $15 to $50, and a service call to have a technician install it could bring the total to $100 to $200 or more depending on your location. If the main control board is the cause, board replacement can range from $150 to $400 or higher including labor.

A knowledgeable DIYer can diagnose this code by inspecting the wiring harness, checking connector pins for corrosion, and testing the thermistor's resistance with a multimeter. If the thermistor itself has failed, replacing it is a relatively straightforward repair. If the main control board is at fault, that repair is more involved and may warrant professional service.

It is not advisable to rely on the refrigerator for food storage while this code is active. A faulty thermistor can cause the control board to mismanage cooling, leading to temperatures that are too warm to safely preserve perishable food. Address the fault as soon as possible to avoid food spoilage.