LG Refrigerators Error Codes

Er 0F

Error code “0F” or “OF” is displayed, and the refrigerator is in demo mode; cooling is off but lights and display work.

Demo Mode Activated

Er 1C

Error code “1C” or “IC” is displayed, and ice production stops; sometimes accompanied by water in the ice room.

Ice Maker Sensor or Communication Error

Er 1F

Error code “Er 1F” and ice production stops; often associated with ice room fan issues.

Ice Room Fan Motor or Feedback Fault

Er 22

Error code “Er 22” and the refrigerator may not cool; compressor may not start.

Compressor Relay / Inverter PCB Error

Er 2F

Error code “2F” is displayed, the fresh food section may be too warm, and airflow from vents is weak.

Refrigerator Fan or Duct Damper Error

Er 5C

Error code “5C” or “SC” is displayed, and the water dispenser or ice maker may not function correctly.

Water Circuit or Sensor Error

Er 5Y

Error code similar to “5Y” or “SY” is displayed, and cooling performance is unstable.

Sensor or PCB Interpretation Error

Er 67

Error code “Er 67” and doors may not close properly; cooling performance may be poor.

Door Open / Door Switch or Door Alignment Error

Er 88 88

Display shows “88 88” or all segments are lit; refrigerator may not respond to controls.

Control Panel Initialization / Power-On Self-Test Error

Er CF

Error code “Er CF” and the refrigerator may not cool properly; condenser fan at the back may not run.

Condenser Fan Motor Failure

Er CO

Error code “Er CO” appears and some functions may be disabled; display may be unresponsive.

Communication Error Between Main PCB and Display PCB

Er dF

Error code “Er dF” and intermittent cooling; frost may appear on back wall of freezer.

Defrost Function Error / Incomplete Defrost

Er dH

Error code “Er dH” and heavy frost buildup on the evaporator; refrigerator may be warm.

Defrost Heater or Defrost Circuit Failure

Er dS

Display shows “Er dS” and refrigerator may not cool properly or may run continuously.

Defrost Sensor / Evaporator Thermistor Fault

Er F dH

Error code related to “F dH” or “F DH” and freezer section shows heavy frost; cooling is poor.

Freezer Defrost Heater Failure

Er F dS

Error code “F dS” or similar and freezer temperature reading is erratic; frost issues may occur.

Freezer Defrost Sensor (Thermistor) Error

Er FF

Error code “Er FF” and freezer temperature is too warm or fluctuates; compressor may run continuously.

Freezer Fan Motor Failure

Er FS

Freezer sensor error displayed as “Er FS” and freezer temperature reading is inaccurate or dashes appear.

Freezer Temperature Sensor (Thermistor) Fault

Er HS

Error code “Er HS” appears and the unit may not defrost correctly or may show erratic temperature behavior.

Humidity Sensor / Defrost Humidity Sensor Fault

Er IF

Error code “Er IF” and ice production is poor or non-existent; sometimes a clicking noise from the ice compartment.

Ice Maker Fan Motor Failure

Er IS

Error code “Er IS” and ice production stops or is severely reduced.

Ice Room / Ice Maker Fan or Sensor Fault

Er rF

Error code “Er rF” is displayed, the fresh food section is warm, and there is little or no airflow from the vents.

Refrigerator Evaporator Fan Motor Failure

Er rF dH

Combined refrigerator fan/defrost error; fresh food section may ice up and fan may be noisy or stop.

Refrigerator Evaporator Fan and Defrost System Fault

Er rS

Refrigerator sensor error “Er rS” and fresh food temperature display is incorrect or shows dashes.

Refrigerator Compartment Temperature Sensor Fault

Er SS

Error code “Er SS” is displayed, temperature readings may be inaccurate, and cooling may be erratic.

Shorted Temperature Sensor

Symptom

A bad odor persists inside the refrigerator even after removing spoiled food.

Persistent Odor / Airflow and Drain Contamination

Symptom

Clicking noise and the refrigerator is not cooling; the compressor attempts to start repeatedly.

Compressor Start Failure

Symptom

Condensation or moisture is forming on the door gaskets and around the dispenser area.

Door Heater / Mullion Heater or Gasket Condensation

Symptom

Freezer is cold but the refrigerator is warm; little or no air is coming from the refrigerator vents.

Refrigerator Airflow / Evaporator Fan or Duct Blockage

Symptom

Ice buildup on the back wall of the freezer; freezer temperature rises over time and the fan becomes noisy.

Defrost System Failure

Symptom

Loud buzzing or humming noise from the back of the refrigerator, especially when the compressor runs.

Condenser Fan or Compressor Noise

Symptom

Rattling or vibrating noise, especially when the compressor starts or stops.

Cabinet Vibration / Loose Components

Symptom

Refrigerator is not cooling at all; both refrigerator and freezer are warm, interior lights work, but fans may or may not run.

No Cooling / Sealed System or Compressor Failure

Symptom

Refrigerator runs constantly and is too cold or too warm; temperature does not match the setpoint.

Temperature Regulation / Thermistor or Control Calibration Issue

Symptom

The display panel is unresponsive. It's not possible to change the temperature or modes, but the appliance continues to cool.

User Interface / Touch Panel Failure

Symptom

The doors are not closing properly or are popping open, leading to warm air intrusion and frost buildup inside.

Door Alignment and Gasket Seal Issue

Symptom

The ice maker is not making ice; the ice bin is empty after 24–48 hours.

Ice Production Failure

Symptom

The ice maker makes ice but does not dispense; the auger motor runs or hums but ice does not come out.

Ice Dispensing Mechanism Failure

Symptom

The interior lights are not working, but the refrigerator is still cooling normally.

Lighting Circuit Failure

Symptom

The refrigerator periodically makes a gurgling or hissing sound.

Normal Refrigerant Flow Noise

Symptom

The water dispenser is not working. There is no water flow, although the icemaker may still be producing ice.

Dispenser Water Flow Failure

Symptom

Water is leaking from the front bottom of the refrigerator onto the floor.

Drain System or Water Line Leak

Symptom

Water is leaking inside the refrigerator, pooling under the crisper drawers.

Blocked Defrost Drain in Fresh Food Section