LG refrigerator: error code IS
What it means, in LG’s own words, how urgent it is, and who to call.
Show us the fridge.
Snap a photo — see what it is, how urgent, who to call. One photo of the problem. fixRAgent reads it and gives you a Triage Profile.
Is IS on an LG refrigerator an emergency? Usually not an emergency. If it smells like burning, sparks, or trips the breaker, switch it off at the breaker and leave it off until it is checked.
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Everything about IS
What IS means
“fault in the ice maker temperature sensor”
— LG USA, [LG Refrigerator] Digital and Analog Error Codes. Codes vary by model: check your refrigerator’s own manual.
Where IS fits
In plain words, IS is about a temperature sensor or its wiring — the control reads a value it does not trust, or a temperature outside its limits.
LG gives 9 other temperature sensor codes for this refrigerator: FS (fault with the freezer temperature sensor), rS (fault in the temperature detection system on the refrigerator side), dS (fault in the defrost temperature sensor), rT (fault in the ambient temperature sensor), dH (temperature measured by the defrost sensor has not increased).
Next to IS in LG’s table: IF (malfunction in the ice maker fan) and It (fault with the ice maker motor).
What to try first
- Unplug the refrigerator for 60 seconds and restart it.
Safety first
If it smells like burning, sparks, or trips the breaker, switch it off at the breaker and leave it off until it is checked.
How urgent is it?
At least THIS WEEK. fixRAgent treats this code as a this-week repair: the appliance has reported a fault, but the code alone does not point at a safety hazard. This is fixRAgent’s reading, not the manufacturer’s. A photo can raise it — water near wiring, scorch marks, a gas smell — but a code never lowers what the photo shows.
Who to call
Appliance repair. Have the model and serial numbers from the label ready — a photo of the label works.
Questions people ask
What does IS mean on an LG refrigerator?
LG’s own support material ([LG Refrigerator] Digital and Analog Error Codes) says: “fault in the ice maker temperature sensor”
Is IS on an LG refrigerator an emergency?
Usually not an emergency. If it smells like burning, sparks, or trips the breaker, switch it off at the breaker and leave it off until it is checked.
Who do I call for IS?
Usually: Appliance repair. Unplug the refrigerator for 60 seconds and restart it.
Recalls and manuals
Check whether your model is under a safety recall on the U.S. Consumer Product Safety Commission’s site: cpsc.gov/Recalls. Your owner’s manual is on LG’s support site; search it with the model number from the label.
Related codes
Not sure it is the code?
Snap a photo of the display and the model label. The Triage Profile says what it is, how urgent it is, and who to call.