sensor
2| Defect of refrigerator sensor| ErS| Short- circuit or disconnection of refrigerator sensor
3| Defect of pantry sensor| ESS| Short- circuit or disconnection of pantry Sensor
4| Defect of ice-room snsor| EIS| Short- circuit or disconnection of ice-room sensor
5| Defect of freezer defrosting sensor| FdS| Short-circuit or disconnection of freezer defrosting sensor
6| Defect of room temperature sensor| Ert| Short-circuit or disconnection of RT Sensor
7| Defect of humidity sensor| EHS| Short-circuit or disconnection of humidity Sensor
8| Defect of freezer cubed ice maker sensor| EId| Short-circuit or disconnection of freezer cubed ice maker sensor
9| Defect of Cubed Mini icemaker sensor| EIO| Short-circuit or disconnection of Cubed Mini ice maker sensor
10| Defect of ice maker kit| EIt| Malfunction of ice maker motor
11| Defect of freezer cubed ice maker kit| EIU| Malfunction of Cubed Mini ice maker motor
12| Defect of Cubed Mini ice maker kit| EIC| Malfunction of Cubed Mini ice maker motor
13| Defect of flow meter| EgF| Malfunction of flow meter or lack of water supply
14| Failed Defrosting| FdH| the defrosting sensor does not reach 40℉(5℃) within 80 minutes after defrosting starts
15| Abnormality of BLDC FAN Motor for Freezer| EFF| there is no feedback signal from fan motor for more than 65 seconds
16| Abnormality of BLDC FAN Motor for Ice Maker| EIF| there is no feedback signal from fan motor for more than 65 seconds
17| Abnormality of BLDC FAN Motor for Mechanic Room| ECF| there is no feedback signal from fan motor for more than 65 seconds
18| Communication Error| ECO| Communication error between main MICOM and display MICOM
19| Sub communication error| ESd| Communication error between main MICOM and Sub MICOM
20| Wi-Fi Modem Error| EOd| Defect of Wi-Fi modem, Communication error between display MICOM and Wi-Fi modem
21| High side cycle leakage| ECH| Detected by high side refrigerant leak, restriction, bad comp, bad valve, etc.
22| Low side cycle leakage| ECL| Detected by low side refrigerant leak, bad comp, long time door open, etc.
23| Refrigerator Defrost Sensor Error| rdS| Short or Disconnection Of Defrost Sensor
24| Abnormality of BLDC FAN MOTOR For Refrigerator| ErF| It is caused when feedback signal isn’t over 65 seconds during BLDC FAN motor operating
25| UV Nano LED Module Error (Optional)| EUC| Bad UV LED Module, Poor connection of display and UV Module, it is caused when feedback signals are abnormal
26| Abnormal Ice-maker Unit| Elt| The ice maker step motor fault or HALL IC, L/Wire short. Faulty Motor Driving circuit.
27| Water Tank Switch| Ett| Water tank not assembly correctly or water tank switch error
28| Defrosting Sensor Error| EdS| Short or disconnection of defrosting sensor
29| Convertible Sensor Error| ECS| Short or Disconnection of Pantry sensor
30| Auto Door Module Problem| Ead| Error of hall sensor or motor or auto door module connection
31| Auto Door Reed Switch Problem| EAS| Check connector of auto door reed switch
32| Auto Drawer Module Problem (Left)| EdL| Error of hall sensor or motor or auto drawer module connection
33| Auto Drawer Reed Switch Problem (Left)| LAS| Check connector of auto drawer reed switch
34| Auto Drawer Module Problem (Right)| Edr| Error of hall sensor or motor or auto drawer module connection
35| Auto Drawer Reed Switch Problem (Right)| rAS| Check connector of auto drawer reed switch
36| Communication Problem (LCD Display-Dispenser)| EC1| Communication connection and transmission TR reception defect
37| Communication Error (Top display-Dispenser)| ErC1| Communication Error between Micom of Top Display PCB and Dispenser Micom
38| Freezer defrosting sensor error| dSF| Short or disconnection of deforst sensor
39| Humidity sensor error| HSE| short or disconnection of humidity
40| Icing sensor error| ISE| Short or disconnection of the sensor about ice maker
41| Pantry sensor error (Optional)| SSE| Short or disconnection of pantry sensor
42| Room Temp Sensor Error| rtE| Short or disconnection of room temp. sensor
43| Ice maker kit defect| ItE| Other electric system error such as motor, gear, Hall IC, operation circuit within I/M kit
44| Freezer defrosting error| dHF| Even though it is passed 80 minute since then defrosting, if defrosting sensor is not over 46°F (8°C), it is caused
45| Abnormality of BLDC FAN Motor for Freezer| FFE| It is caused when feedback signal isn’t over 65 seconds during BLDC FAN motor operating
46| Abnormality of BLDC FAN Motor for Mechanic Room| CFE| It is caused when feedback signal isn’t over 65 seconds during BLDC FAN motor operating
47| Communication Error| COE| Communication error between Micom of Main PCB and Display Micom

LRTNC0705V

short or open
3| Defrost Sensor Error| Blinking 1 Time| Defrost temp sensor short or open
4| Room Temp Sensor Error| Blinking 5 Times| Ambient temp sensor short or open
5| Defrost Failure| Blinking 4 Times| Although defrost operated for 2 hours, defrost- sensor temp doesn’t over 13C
6| Knob Dial Error| Blinking 2 Times| Knob dial resistance short or open
7| Freezer Fan Motor Failure| Blinking 6 Times| F- Fan is locked or open

1-47 LG Refrigerator Main Error Codes

For Sensor Related Errors (EFS, ErS, ESS, EIS, FdS, Ert, EHS, EId, EIO, rdS, ECS, SSE, rtE, ISE, HSE, dSF, EdS):

• Troubleshooting Steps:
  • Check the sensor’s wiring harness for any signs of damage or loose connections and secure or replace as necessary.
  • Use a multimeter to check the sensor for continuity. If it shows an open circuit or an irregular resistance value, replace the sensor.
  • Ensure the sensor is properly positioned and not obstructed by any items or frost build-up.

For Motor and Fan Errors (EFF, EIF, ECF, ErF, FFE, CFE):

• Troubleshooting Steps:
  • Inspect the fan motor for any debris or ice buildup that may be obstructing its movement and clean as necessary.
  • Check the fan motor’s wiring for damage or disconnections and repair or replace as needed.
  • Test the fan motor with a multimeter for continuity. If the motor does not show continuity, it may need to be replaced.

For Ice Maker and Motor Malfunctions (EIt, EIU, EIC, Elt, ItE):

• Troubleshooting Steps:
  • Ensure the ice maker is properly connected and there is no obstruction in the ice maker compartment.
  • Check the motor for any signs of wear or failure. Replace if necessary.
  • Verify the water supply to the ice maker is sufficient and the fill tube is not frozen.

For Defrosting Issues (FdH, dHF):

• Troubleshooting Steps:
  • Verify the defrost sensor’s operation using a multimeter. Replace the sensor if it is faulty.
  • Inspect the defrost heater and thermostat for functionality. If either component is defective, replace it.
  • Ensure the evaporator coils are not overly frosted over. If so, manually defrost the refrigerator and check if the automatic defrost cycle operates properly.

For Communication Errors (ECO, ESd, EC1, ErC1, COE):

• Troubleshooting Steps:
  • Check the connections between the main control board and the display panel or sub MICOM. Ensure all connections are secure and free from corrosion.
  • Reset the refrigerator by unplugging it for a minute and then plugging it back in.
  • If the error persists, the main control board or the display panel may need to be replaced.

For Wi-Fi and Electronic Errors (EOd, EUC):

• Troubleshooting Steps:
  • Reset the Wi-Fi modem and ensure the refrigerator is properly connected to your home network.
  • Check the UV LED module and its connections for any signs of damage or poor connection.
  • If the error persists, consider replacing the affected module or consult with a technician for further electronic diagnostics.

For Leakage and Cycle Errors (ECH, ECL):

• Troubleshooting Steps:
  • Inspect the refrigerator for visible signs of refrigerant leakage.
  • Check the compressor and valves for proper operation. If you suspect a leak or malfunction, professional service is recommended due to the complexity of refrigerant systems.

LRTNC0705V Specific Error Codes

Refrigerator Sensor Error, Defrost Sensor Error, Room Temp Sensor Error:

• Similar to the main error codes, check the respective sensors for continuity, correct positioning, and clean any obstruction. Replace the sensor if found defective.

Defrost Failure:

• Verify the operation of the defrost system as mentioned in the main error codes section. Focus on the defrost heater, thermostat, and sensor.

Knob Dial Error:

• Check the knob dial for physical damage or misalignment.
• Test the resistance of the knob dial with a multimeter. If the resistance is outside the normal range, replace the knob dial.

Freezer Fan Motor Failure:

• Follow the troubleshooting steps outlined for fan motor errors in the main error codes section to address freezer fan motor issues.

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