An LG Refrigerator displays a IU error code when a Freezer Ice Maker Function Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a dS-F error code when a Freezer Defrost Sensor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a dH-F error code when a Freezer Defrost Heater Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a rF error code when a Fridge Evaporator Fan Motor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a rt error code when a Room Temp Sensor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a dS error code when a Defrost Sensor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a rS error code when a Refrigerator Temperature Sensor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a IS error code when a Ice Maker Sensor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a SS error code when a Pantry Temperature Sensor Error has been detected by the internal electronic diagnostics.

An LG Refrigerator displays a FS error code when a Freezer Temperature Sensor Error has been detected by the internal electronic diagnostics.