GE Refrigerator Error Code iD

The iD code indicates a disconnection or short circuit in the IDUCT sensor, which is a temperature sensor located near the evaporator. The main control board monitors this sensor through connector CN15 and triggers the code when it detects an open or shorted circuit. Without a valid signal from this sensor, the refrigerator cannot accurately regulate its internal temperature.

Operating the refrigerator with an active iD code means the control board is working without accurate duct temperature data, which can affect cooling performance and efficiency. Food safety may be at risk if the unit is not maintaining proper temperatures. It is best to address the fault promptly rather than continue using the refrigerator in this condition.

If only the IDUCT sensor needs replacement, parts costs are typically in the range of $20 to $60 depending on the specific model. If a service technician is needed for diagnosis and replacement, total repair costs including labor generally range from $100 to $250. Additional costs may apply if wiring harness damage or a defrost system fault is also found during inspection.

A knowledgeable DIYer can start by inspecting the wiring harness and the CN15 connector on the main PCB for obvious damage or disconnection. Confirming the fault requires a multimeter to measure resistance across the sensor terminals after unplugging CN15. If the sensor tests open or shorted, replacing the IDUCT sensor on the evaporator is required and involves working near refrigerant lines, so comfort with appliance repair is important before proceeding.

A power reset may temporarily clear the code from the display, but the error will return if the underlying sensor fault has not been repaired. The iD code is triggered by a measured electrical fault, either an open or shorted circuit, so the condition must be corrected physically before the code will stay cleared.