Error code lookup
LG Refrigerator Error Codes
What each code on your LG refrigerator means, the one safe thing to check first, and when it’s time to call me. I checked every code here against LG’s own support pages and manuals.
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23 codes
What your LG refrigerator is telling you
Codes from LG’s US refrigerator help library. Depending on the model, a code may start or end with ‘Er’, ‘E’ or ‘r’ (for example ‘Er FF’). For any of these codes, LG first suggests resetting the refrigerator (unplug it for about 5 minutes, then plug it back in); if the code persists, call me.
That code isn’t on this list. It may be specific to your model, so call or text me at (480) 292-4746 with the code and model number.
FF
There is an issue with the freezer fan. Frost or ice buildup blocking the fan can cause it.
Try this first: Manually defrost: move food to a cooler, unplug the refrigerator, leave both doors open for at least 8 hours with towels down to catch water, then dry the inside and plug it back in. It can take 24 to 48 hours to get back to normal temperature. Afterward, make sure the vents are not blocked, the doors close fully and the unit is level.
If you see frost on the freezer walls, the leveling and door alignment may need adjusting.
rF
There is an abnormality with the refrigerator-section fan motor. Frost buildup may be the cause.
Try this first: Manually defrost: move food to a cooler, unplug the refrigerator, leave the doors open for at least 8 hours with towels down, then dry the inside, plug it back in and allow 24 to 48 hours to cool. If the code returns, call me.
IF
There is a problem with the ice maker fan. Frost or ice buildup around the fan can cause it.
Also shown as F1
Try this first: Manually defrost the refrigerator for at least 8 hours with it unplugged and the doors open. Then check that the unit is level, the doors are aligned and the door gaskets are not torn.
CF
There is a problem with the condenser fan, the fan at the back, bottom of the refrigerator that releases heat from the compressor.
LG says this needs repair service.
dH
The defrost system did not reach the expected temperature within the set time (about 1 hour) after defrost started.
Also shown as FdH, dHF
Try this first: Unplug the refrigerator for 2 minutes to reset it and let it defrost again. If the code persists, call me.
LG says this code can appear as FdH or dHF depending on the model.
dS
The defrost sensor is shorted or disconnected.
Also shown as F dS, r dS
F dS refers to the freezer defrost sensor and r dS to the refrigerator defrost sensor. LG says this needs repair service.
FS
The freezer temperature sensor is shorted or disconnected.
LG says this needs repair service.
rS
The refrigerator temperature sensor is shorted or disconnected.
LG says this needs repair service.
rT
The room (ambient) temperature sensor is shorted or open.
LG says this needs repair service.
HS
The humidity sensor is shorted or disconnected.
LG says this needs repair service.
gF
There is a problem with the water flow sensor. A closed water tap, a kinked supply hose or incorrect water pressure can cause it.
Try this first: Unplug the refrigerator for 60 seconds and plug it back in. Make sure the water supply valve is fully open, the supply hose is not kinked, and the water pressure is adequate.
It
There is a defect in the ice maker.
Also shown as iT
LG says this needs repair service.
EID
There is a failure of the ice maker sensor in the freezer compartment.
LG says this needs repair service.
EIU
There is a failure of the ice maker assembly in the freezer compartment.
LG says this needs repair service.
CO
There is a communication error between the control board and the display.
LG says this needs repair service.
C1
There is a communication error between the LCD display and the dispenser.
LG says this needs repair service.
Od
There is a communication error with the Wi-Fi modem.
LG says this needs repair service.
CH
There is a refrigerant leak on the high-pressure side of the cooling system.
Also shown as CH E, E CH
Also shown as ‘CH E’ or ‘E CH’. LG says this needs repair service.
CL
There is a refrigerant leak on the low-pressure side of the cooling system.
Also shown as CL E, E CL
Also shown as ‘CL E’ or ‘E CL’. On a refrigerator this is not a control-lock indicator. LG says this needs repair service.
22
There is a problem with the compressor relay.
A numeric code used on some models. LG says this needs repair service.
33
There is a problem with the compressor relay.
A numeric code used on some models. LG says this needs repair service.
Sb
Sabbath Mode is on. This is not a fault. While it is on, alarms and the dispenser are disabled.
Also shown as S6, 5b, 56
Try this first: Press and hold the Freezer and Wi-Fi buttons for 3 seconds to turn it off. It also turns off automatically after 96 hours.
May look like S6, 5b or 56 on the display. The button combination can vary by model.
OF F
Demo (Display) Mode is on, which turns off all cooling. This is not a fault.
Try this first: With a refrigerator door open, press and hold the Refrigerator and Ice Plus buttons together for 5 seconds.
The button combination can vary by model.
When to call me
If the safe check doesn’t clear the code, or the same code keeps coming back, the refrigerator needs a real diagnosis. Error codes point to the system that failed, not always the exact part, so I test before I replace anything.
Never open panels, bypass a safety switch or work on gas or wiring yourself. Unplug the appliance or turn off its breaker if you smell burning or see water near electrical parts.
Upfront pricing
$65
Service call, waived when you approve the repair. You get an exact price before any work starts.
Stacked washer and dryer units have a $125 service call, also waived with the repair.
Where These Codes Come From
I checked every code on this page against LG’s own documentation on October 18, 2026, and left out any code I couldn’t confirm there. Meanings can differ between models and model years, so your owner’s manual or the tech sheet inside your refrigerator has the final word for your exact model.
FAQ
LG refrigerator code questions
What does error code FF mean on a LG refrigerator?
There is an issue with the freezer fan. Frost or ice buildup blocking the fan can cause it. Try this first: Manually defrost: move food to a cooler, unplug the refrigerator, leave both doors open for at least 8 hours with towels down to catch water, then dry the inside and plug it back in. It can take 24 to 48 hours to get back to normal temperature. Afterward, make sure the vents are not blocked, the doors close fully and the unit is level. If the code comes back, call or text me at (480) 292-4746.
What does error code rF mean on a LG refrigerator?
There is an abnormality with the refrigerator-section fan motor. Frost buildup may be the cause. Try this first: Manually defrost: move food to a cooler, unplug the refrigerator, leave the doors open for at least 8 hours with towels down, then dry the inside, plug it back in and allow 24 to 48 hours to cool. If the code returns, call me. If the code comes back, call or text me at (480) 292-4746.
What does error code IF mean on a LG refrigerator?
There is a problem with the ice maker fan. Frost or ice buildup around the fan can cause it. Try this first: Manually defrost the refrigerator for at least 8 hours with it unplugged and the doors open. Then check that the unit is level, the doors are aligned and the door gaskets are not torn. If the code comes back, call or text me at (480) 292-4746.
What does error code CF mean on a LG refrigerator?
There is a problem with the condenser fan, the fan at the back, bottom of the refrigerator that releases heat from the compressor. If the code comes back, call or text me at (480) 292-4746.
How much does it cost to have you diagnose a LG refrigerator error code?
My service call is $65 ($125 for stacked washer and dryer units), and it’s waived when you approve the repair. I give you an exact price before any work starts.
More LG Error Codes
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No Code on the Display?
Use my quick troubleshooter to match the symptom instead, or browse the full error code index
Ready when you are
Code still showing? Book your refrigerator repair.
Call or text (480) 292-4746, Monday to Saturday, 9am to 6pm. Same-day and next-day appointments are often available.