LG
All LG Refrigerator Error Codes
Every known LG refrigerator error code with plain-English explanations, difficulty ratings, and step-by-step DIY fix guides.
40 error codes
1F
The Craft Ice maker blower fan is not functioning properly.
Moderate Fix
20–40 minutes
Er CF
The condenser fan motor is not running.
Advanced Fix
30–60 minutes
Er CO
The main control board and display board cannot communicate.
Advanced Fix
30–60 minutes
Er CS
The compressor discharge temperature sensor is not working.
Advanced Fix
30–60 minutes
Er dH
The defrost heater circuit is not functioning properly.
Advanced Fix
30–60 minutes
Er dS
The defrost temperature sensor is malfunctioning.
Moderate Fix
20–45 minutes
Er FF
The freezer evaporator fan motor is not working.
Advanced Fix
30–60 minutes
Er FS
The freezer compartment temperature sensor is faulty.
Moderate Fix
20–40 minutes
Er gF
The water dispenser flow sensor is not detecting water flow.
Moderate Fix
20–45 minutes
Er HS
The humidity sensor in the refrigerator is malfunctioning.
Moderate Fix
20–40 minutes
Er IF
The ice maker fan motor is not operating correctly.
Moderate Fix
20–45 minutes
Er IS
The ice maker sensor is not functioning correctly.
Moderate Fix
20–45 minutes
Er IT
The ice maker's temperature sensor is not reading correctly.
Moderate Fix
20–40 minutes
Er rS
The refrigerator compartment temperature sensor is malfunctioning.
Moderate Fix
20–40 minutes
Er rt
The ambient room temperature sensor is malfunctioning.
Moderate Fix
20–40 minutes
Er SS
A secondary temperature sensor in the pantry or convertible zone is faulty.
Moderate Fix
20–40 minutes
OF F
The refrigerator is in Demo Mode, which disables all cooling.
Easy Fix
1 minute
Sb
Sabbath Mode is enabled, disabling lights, alarms, and the dispenser.
Easy Fix
1 minute
88
The display shows 88 during a diagnostic test, indicating no hidden error codes.
Easy Fix
1 minute
22
The compressor relay is malfunctioning, preventing the compressor from starting.
Advanced Fix
60–120 minutes
33
The compressor relay has failed, similar to error code 22.
Advanced Fix
60–120 minutes
67
A gap in the door or an object is preventing the door from closing properly.
Easy Fix
5–15 minutes
Er Ad
The automatic door motor failed to move to the correct position.
Advanced Fix
30–60 minutes
Er AS
The auto door motor reed switch is malfunctioning.
Advanced Fix
30–60 minutes
Er dr
The door motor failed to reach the correct position.
Advanced Fix
30–60 minutes
Er C1
The LCD display and water/ice dispenser have lost communication.
Advanced Fix
30–60 minutes
Er Od
The Wi-Fi modem or communication module is not responding.
Easy Fix
5–10 minutes
LO
The surrounding room temperature is too low for the refrigerator to operate efficiently.
Easy Fix
Varies
HI
The surrounding room temperature is too high for efficient refrigerator operation.
Easy Fix
Varies
FU
The freezer has not reached proper operating temperature within the expected time.
Moderate Repair
15–60 minutes
Er r2
The lower refrigerator compartment temperature sensor is malfunctioning.
Advanced Fix
30–60 minutes
Er tt
The water tank is missing, incorrectly inserted, or its sensor is malfunctioning.
Moderate Repair
10–20 minutes
Er rF
The refrigerator compartment fan motor is not functioning properly.
Moderate Repair
8–24 hours (includes defrosting time)
EID
The freezer compartment ice maker sensor has failed or is disconnected.
Professional Repair
45–90 minutes (professional)
EIU
The freezer compartment ice maker assembly has failed and is not functioning.
Professional Repair
60–120 minutes (professional)
gF
The water flow sensor has detected abnormal water flow or low water pressure to the ice maker.
Moderate Fix
20–45 minutes
CH
The system has detected a possible refrigerant leak on the high-pressure (condenser) side of the sealed system.
Critical — Professional Only
2–4 hours (professional)
CL
The system has detected a possible refrigerant leak on the low-pressure (evaporator) side of the sealed system.
Critical — Professional Only
2–4 hours (professional)
Er 67
A gap in the door or an obstruction inside the refrigerator is preventing the door from closing properly.
Easy Fix
5–15 minutes
IS
The ice maker fan motor is not functioning or the ice maker sensor has become disconnected.
Moderate Fix
30–60 minutes