LG Refrigerator Error Codes

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📋 Error Code Index — LG Refrigerator

Er 1FFreezer Fan Motor Fault Er CFCondenser Fan Fault Er dHDefrost Heater Fault Er FFEvaporator Fan Fault Er FSFreezer Sensor Fault Er ISIce Maker Sensor Fault Er rSRefrigerator Sensor Fault

Er 1F

Freezer Fan Motor Fault

Freezer compartment fan motor not operating correctly.

High Priority

Possible Causes
Fan motor failed or seized
Fan blade iced over — blocked from rotating
Wiring to fan motor open
Diagnostic Steps
1Defrost unit — ice may be blocking fan blade
2Test fan motor after thaw
3Replace freezer fan motor if failed

Er CF

Condenser Fan Fault

Condenser fan motor not operating — compressor overheating risk.

High Priority

Possible Causes
Fan motor failed or seized
Fan blade obstructed by debris
Wiring to fan motor open
Diagnostic Steps
1Check fan blade for debris obstruction
2Test fan motor winding continuity
3Replace condenser fan motor if failed

Er dH

Defrost Heater Fault

Defrost heater circuit fault — ice buildup on evaporator coil.

Medium Priority

Possible Causes
Defrost heater failed open circuit
Defrost thermostat open
Defrost control board fault
Diagnostic Steps
1Manually defrost unit if ice buildup present
2Test defrost heater and thermostat for continuity
3Replace failed component as indicated

Er FF

Evaporator Fan Fault

Freezer evaporator fan motor not operating — cold air not circulating.

High Priority

Possible Causes
Fan motor failed or seized
Fan iced over — blocked from rotating
Wiring to fan open
Diagnostic Steps
1Defrost unit — ice may be blocking fan
2Test fan motor after thaw
3Replace evaporator fan motor if failed

Er FS

Freezer Sensor Fault

Freezer compartment temperature sensor open or out of range.

Medium Priority

Possible Causes
Sensor failed open or shorted
Connector loose or corroded
Diagnostic Steps
1Check connector for corrosion
2Test sensor resistance — should vary with temperature
3Replace freezer sensor if reading is open or near zero

Er IS

Ice Maker Sensor Fault

Ice maker temperature sensor open or out of range.

Medium Priority

Possible Causes
Ice maker sensor failed
Connector loose or corroded
Diagnostic Steps
1Check sensor connector
2Test sensor resistance
3Replace ice maker sensor if reading is faulty

Er rS

Refrigerator Sensor Fault

Refrigerator compartment temperature sensor open or out of range.

Medium Priority

Possible Causes
Sensor failed open or shorted
Connector loose or corroded
Diagnostic Steps
1Check connector for corrosion
2Test sensor resistance
3Replace refrigerator sensor if reading is faulty

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Important Notice: Error code information on this page is based on LG manufacturer service documentation. Refrigerant handling requires EPA certification and must be performed by a licensed technician. AppliancesCare Appliance Repair LLC provides this information for educational purposes only.