LG Refrigerator Er Code: Troubleshoot Error Codes | DIY Guide

If you own an LG bottom-freezer refrigerator, you may encounter error codes that appear on the control panel display. These codes indicate component failures detected by the electronic control board. Understanding these error codes is essential to diagnose and troubleshoot issues with your refrigerator. This guide provides DIY advice to help you match the error code on your refrigerator with the condition listed and determine the problem part. The guide also includes repair instructions (if listed) to help you fix the broken part. From freezer sensor errors to ice maker sensor failures, this guide covers all error codes that may appear on your LG bottom-freezer refrigerator. By following the instructions provided, you can save time and money on costly repairs and ensure your refrigerator is running efficiently.

LG bottom-freezer refrigerator error codes

These error code explanations can help you diagnose a problem with your LG bottom-freezer refrigerator.

Error codes appear on the control panel display when the electronic control board detects component failures. When an error code appears:

1. Match the error code on your refrigerator with the error code in the chart below.
2. Make sure that the condition listed with the error code is the same as the symptom(s) shown by your refrigerator.
3. Read the DIY advice to learn how to troubleshoot the issue and determine the problem part.
4. Follow repair guide instructions (if listed) to fix the broken part.

SPECIFICATION

Sensor and wiring connector problems. Possible parts
Thermistor (temperature sensor), Wiring harness, Main power control board (PCB)
Er rS| Refrigerator sensor error| Check/Repair
Sensor, wiring and connectors. Possible parts
Thermistor (temperature sensor), Wiring harness, Main power control board (PCB)
F dS| Freezer defrost sensor| Check/Repair
Sensor short or wiring problem. How-to help
How to replace a refrigerator defrost control assembly

Possible parts
Controller assembly, which is a component that has the defrost thermistor (temperature sensor) and the fuse for the defrost system

r dS| Refrigerator defrost sensor| Check/Repair
Sensor short or wiring problem. Possible parts
Controller assembly, which is a component that has the defrost thermistor (temperature sensor) and the fuse for the defrost system
Er HS| Humidity sensor| Check/Repair
Sensor short or wiring problem. Possible parts
Humidity sensor
Er IS| Ice maker sensor| Check/Repair
Sensor short or wiring problem. How-to help
How to replace an in-door ice maker on a French door refrigerator

Possible parts
Ice maker assembly; the sensor isn’t usually sold separately

Er SS| Pantry sensor| Check/Repair
The pantry is the deli drawer. Short in sensor or wiring problem. Possible parts
Pantry temperature sensor
Er rt| Room temperature sensor| Check/Repair
Short in sensor or wiring problem. Possible parts
Room temperature sensor
Er It| System error inside ice maker| Check/Repair
Self-test ice maker routine How-to help
How to replace an in-door ice maker on a French door refrigerator

Possible parts
Ice maker assembly

Er gF| Flow meter error code| Check/Repair
Water pressure, flow of water. Possible parts
Flow meter
F dH| Sensor did not get over 40 F in defrost| Check/Repair
Faulty fuse, heater or control board. How-to help
How to replace a refrigerator defrost control assembly

Possible parts
Controller assembly, Defrost heater, Relay on control board

r dH| Sensor did not get over 40 F| Check/Repair
Faulty fuse, heater or control board. Possible parts
Controller assembly, Defrost heater, Relay on control board
Er IF| The fan for the ice compartment failed| Check/Repair
Icing fan blocked, ice fan motor is defective, wiring in the circuit is defective, or the control board has failed. How-to help
Troubleshooting an Er If error code on a refrigerator video

Possible parts
Ice fan motor, Wiring harness, Power control board (PCB)

Er FF| Evaporator fan failed| Check/Repair
Fan motor, control board or wiring harness. Possible parts
Evaporator fan motor, Power control board, Wiring harness
Er CF| Condenser fan motor is defective| Check/Repair
Condenser fan motor, wiring or the control board. Possible parts
Condenser fan motor, Power control board, Wiring harness
Er CO| Communication error| Check/Repair
Communication error between main board and display board How-to help
How to replace an electronic control board on the back of a refrigerator

Possible parts
Display control board, Power control board, Wiring harness

E Od| Wi-Fi modem failure| Check/Repair
Unplug the refrigerator and check the wiring connection between the Wi-Fi modem and the display control board. Reconnect any loose wires. If wiring connections are okay, replace the Wi-Fi modem. If the problem continues, replace the display control board. Possible parts
Wi-Fi modem, display control board
Er FF| Freezer compartment evaporator fan failure| Check/Repair
Unplug the refrigerator and check the wiring connection between the freezer evaporator fan and the main control board. Reconnect any loose wires. If wiring connections are okay, replace the freezer evaporator fan. If the problem continues, replace the main control board. Possible parts
Freezer evaporator fan, main control board
E rF| Refrigerator compartment evaporator fan failure| Check/Repair
Unplug the refrigerator and check the wiring connection between the refrigerator evaporator fan and the main control board. Reconnect any loose wires. If wiring connections are okay, replace the refrigerator evaporator fan. If the problem continues, replace the main control board. Possible parts
Refrigerator evaporator fan, main control board
E ID| Freezer compartment ice maker sensor failure| Check/Repair
Unplug the refrigerator and check the wire harness connections from the freezer compartment ice maker to the main control board. Reconnect any loose wires. If wire harness connections are okay, replace the freezer compartment ice maker. If the problem continues, replace the main control board. Possible parts
Freezer compartment ice maker, main control board
E IU| Freezer compartment ice maker assembly failure| Check/Repair
Unplug the refrigerator and check the wire harness connections from the freezer compartment ice maker to the main control board. Reconnect any loose wires. If wire harness connections are okay, replace the freezer compartment ice maker. If the problem continues, replace the main control board. Possible parts
Freezer compartment ice maker, main control board
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Faqs

What are LG bottom-freezer refrigerator error codes?

LG bottom-freezer refrigerator error codes are codes that appear on the control panel display when the electronic control board detects component failures.

How can I diagnose a problem with my LG bottom-freezer refrigerator using error codes?

You can diagnose a problem with your LG bottom-freezer refrigerator using error codes by matching the error code on your refrigerator with the error code in the chart provided in the user manual. Make sure that the condition listed with the error code is the same as the symptom(s) shown by your refrigerator. Then, read the DIY advice to learn how to troubleshoot the issue and determine the problem part. Follow repair guide instructions (if listed) to fix the broken part.

What should I do if I encounter an Er FS error code?

If you encounter an Er FS error code, you should check and repair sensor and wiring connector problems. Possible parts that may need to be replaced include the thermistor (temperature sensor), wiring harness, and main power control board (PCB).

What should I do if I encounter an Er rS error code?

If you encounter an Er rS error code, you should check and repair sensor, wiring, and connector problems. Possible parts that may need to be replaced include the thermistor (temperature sensor), wiring harness, and main power control board (PCB).

What should I do if I encounter an F dS error code?

If you encounter an F dS error code, you should check and repair sensor short or wiring problems. You can refer to the user manual’s DIY advice section to learn how to replace a refrigerator defrost control assembly. Possible parts that may need to be replaced include the controller assembly, which is a component that has the defrost thermistor (temperature sensor) and the fuse for the defrost system.

What should I do if I encounter an Er HS error code?

If you encounter an Er HS error code, you should check and repair sensor short or wiring problems. Possible parts that may need to be replaced include the humidity sensor.

What should I do if I encounter an Er IS error code?

If you encounter an Er IS error code, you should check and repair sensor short or wiring problems. Possible parts that may need to be replaced include the ice maker assembly, as the sensor isn’t usually sold separately.

What should I do if I encounter an Er FF error code?

If you encounter an Er FF error code, you should check and repair fan motor, control board, or wiring harness problems. Possible parts that may need to be replaced include the evaporator fan motor, power control board, and wiring harness.

What should I do if I encounter an Er CF error code?

If you encounter an Er CF error code, you should check and repair condenser fan motor, wiring, or control board problems. Possible parts that may need to be replaced include the condenser fan motor, power control board, and wiring harness.

What should I do if I encounter an E Od error code?

If you encounter an E Od error code, you should unplug the refrigerator and check the wiring connection between the Wi-Fi modem and the display control board. Reconnect any loose wires. If wiring connections are okay, replace the Wi-Fi modem. If the problem continues, replace the display control board.

What should I do if I encounter an Er FF error code?

If you encounter an Er FF error code, you should unplug the refrigerator and check the wiring connection between the freezer evaporator fan and the main control board. Reconnect any loose wires. If wiring connections are okay, replace the freezer evaporator fan. If the problem continues, replace the main control board.

What should I do if I encounter an E rF error code?

If you encounter an E rF error code, you should unplug the refrigerator and check the wiring connection between the refrigerator evaporator fan and the main control board. Reconnect any loose wires. If wiring connections are okay, replace the refrigerator evaporator fan. If the problem continues, replace the main control board.

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