GE Refrigerator Error Code t3

The t3 code on a GE refrigerator indicates a problem with the TH3 suction line temperature sensor in the ice maker system. The control board has detected that this sensor circuit is either open (no continuity) or shorted (abnormally low resistance). When active, the freezer display shows "Ice" and the fresh food display shows "t3." The ice maker may not operate correctly while this code is present.

A t3 error code relates specifically to the ice maker sensor and does not directly affect the refrigerator or freezer cooling systems. Food stored in the refrigerator and freezer compartments should remain safe as long as temperatures are maintained. However, the ice maker may not function properly, and the issue should be diagnosed and repaired to prevent any further complications.

A power reset may temporarily clear the t3 code from the display, but if the underlying sensor or wiring fault still exists, the code will return once the control board runs its diagnostics again. Resetting the unit is not a fix for this error. The TH3 sensor circuit needs to be inspected and repaired or replaced to resolve the fault permanently.

A knowledgeable DIYer can begin by inspecting the wiring harness and connectors leading to the TH3 sensor for visible damage, corrosion, or loose connections. Testing the sensor resistance with a multimeter is the next step, following the Ice t3 diagnostic flow chart. If the sensor has failed, replacing it is a manageable repair. However, if the control board is involved, professional service is recommended.

If the fix is simply cleaning or reseating a corroded connector, there may be little to no parts cost involved. Replacing the TH3 suction line sensor typically costs between $20 and $60 for the part, plus labor if a technician is hired. If the control board requires replacement, costs can range from $150 to $400 or more depending on the model and service fees.