LG  Refrigerator  Error Codes

These error code explanations can help you diagnose a problem with your LG bottom-freezer refrigerator. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for washing machines, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. You can also search for owner’s manuals, get advice from an expert and find refrigerator replacement parts.

Error Code Condition Check/Repair Shop Parts
Er FS Freezer sensor error Sensor and wiring connector problems
Thermistor (temperature sensor), Wiring harness, main Power control board (PCB)
Er rS Refrigerator sensor error Sensor and wiring and connectors
Thermistor (temperature sensor), Wiring harness, Main power control board (PCB)
F dS Freezer defrost sensor Sensor short or wiring problem
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 Sensor short or wiring problem
Controller assembly, which is a component that has the defrost thermistor (temperature sensor) and the fuse for the defrost system
Er HS Humidity sensor Sensor short or wiring problem
Humidity sensor
Er IS Ice maker sensor Sensor short or wiring problem
Ice maker assembly; the sensor isn't usually sold separately.
Er SS Pantry sensor The pantry is the deli drawer. Short in sensor or wiring problem.
Pantry temperature sensor
Er rt Room temperature sensor Short in sensor or wiring problem
Room temperature sensor
Er It System error inside ice maker Self-test ice maker routine
ice maker assembly
Er gF Flow meter error code Water pressure, flow of water
Flow meter
F dH Sensor did not get over 40 F in defrost Faulty fuse, heater, control board
Controller assembly, defrost heater, relay on control board
r dH Sensor did not get over 40 F Faulty fuse, heater, control board
Controller assembly, defrost heater, relay on control board
Er IF The fan for the ice compartment failed Icing fan blocked, ice fan motor is defective, wiring in the circuit is defective, or the control board has failed
Ice fan motor, Wiring harness, Power control board (PCB)
Er FF Evaporator fan failed Fan motor, control board, wiring harness
Evaporator fan motor, Power control board, Wiring harness
Er CF Condenser fan motor is defective Condenser fan motor, wiring or the control board
Condenser fan motor, Power control board, Wiring harness
Er CO Communication error Communication error between main board and display board
Display control board, Power control board, Wiring harness