What rF (Refrigerator Fan Motor Error) Means
rF indicates an abnormality in the refrigerator-side fan motor (the fan that circulates cold air through the fresh-food compartment), which LG says may be caused by frost buildup. LG's error-code list gives the same manual-defrost procedure it uses for FF, and states there is no further troubleshooting if that doesn't clear it.
Common Causes of rF (Refrigerator Fan Motor Error)
- Frost buildup blocking the refrigerator-compartment fan
- Door not sealing fully, letting in humid air that refreezes
- Fan motor itself has failed (if defrosting doesn't clear the code)
🔧 One Safe Check You Can Try
Move food to a cooler or spare fridge, then unplug the unit and leave the doors open at least 8 hours for the refrigerator side to fully defrost, drying up any water as the frost melts before plugging back in.
⚠ Why You Shouldn't Go Further Than That
- If rF returns after a full defrost with no visible frost around the fan, that means the fan motor itself needs replacing, which sits behind the interior liner and is a technician job.
- A blocked refrigerator fan means uneven cooling throughout the compartment even if the unit still feels cold near the vents, so don't assume the fridge is fine just because part of it is cool.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.