What the appliance detected
Detected condition
LG identifies FF as a freezer fan motor abnormality; ice or frost around the fan can also prevent normal fan operation.
What may contribute
Possible causes
- The freezer fan motor is not operating normally.
- Ice or frost around the fan is preventing normal fan movement.
- Warm air entering through an open door, poor door sealing, or heavy loading may contribute to frost conditions.
- A fan, wiring, or control concern may require professional inspection if the code returns.
Start conservatively
Safe preliminary checks
Work in order and stop whenever a step is not supported by the documentation for your model.
Record the exact code and model
- Photograph or write down the exact display before clearing power or opening doors for an extended time.
- Confirm the full model number and owner manual because display formats and compartments can vary.
Protect food and stop for hazards
- Use food-safety judgment for refrigerated or frozen food if cooling is reduced or doors will remain open for defrosting.
- Stop and request service immediately for a burning odor, sparking, visible electrical damage, repeated breaker trips, or water contacting electrical parts.
Check accessible door and loading conditions
- Make sure the freezer and refrigerator doors close completely and that food packages are not blocking the door or interior air vents.
- Look for torn or visibly damaged door gaskets without removing panels or forcing the doors.
Use LG-supported defrost guidance only if practical
- LG says to unplug the refrigerator or turn off its dedicated breaker before allowing frost around the fan to melt with the compartment doors open.
- Because this may take a long time and affects stored food, request service instead if you cannot protect the food or safely manage water from melting frost.
Actions not recommended
- Do not remove panels, chip ice with tools, use a heat gun, access the fan, or reach into hidden compartments.
- Do not bypass door switches, test internal wiring, or treat FF as proof that the fan motor must be replaced.
- Do not leave water from melting frost where it can contact outlets, cords, controls, or flooring hazards.
When to stop and request service
- Request LG service if FF returns after the accessible checks or any supported defrost attempt.
- Request service instead of defrosting if stored food cannot be protected, water cannot be managed safely, or the model documentation is unclear.
- Stop immediately for electrical warning signs, visible damage, persistent warming, or any step that would require disassembly.
Documented source
Official information reviewed
Our summary is based on manufacturer support material and stays within the limits of that material.
LG USA Support
LG Refrigerator - Error Code ListSource page date: April 30, 2026
LG USA Support
LG Refrigerator - Troubleshooting an E FF or E rF Error CodeSource page date: October 21, 2023
Source reviewed by Appliance Help HQ: August 17, 2026.
Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by LG.
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