LG Cooktop Error Code FE

The FE code on an LG cooktop indicates a left cooling fan failure. The cooktop's control system monitors the left internal cooling fan and triggers this code when the fan is not operating correctly. The cooling fan protects the power electronics from heat damage, so the unit will limit or suspend operation until the fault is corrected.

It is not safe to continue operating the cooktop while the FE code is active. The left cooling fan exists specifically to prevent the power electronics from overheating. Running the unit without a functioning cooling fan risks damaging the inverter board or other internal components, which can lead to more expensive repairs or create a safety hazard.

Resetting the cooktop by cycling the power may temporarily clear the FE code, but the error will return as soon as the control system detects that the left cooling fan is still not functioning. A reset does not address the underlying fault. The connector, wiring, fan motor, and filter board need to be inspected and tested to resolve the error permanently.

Some causes of the FE error are approachable for a knowledgeable DIYer. Checking and reseating the CN 003 connector on the left filter board requires no special tools and no parts. Testing and replacing the fan motor or wiring is more involved and requires comfort working around appliance electronics. If you are unsure about working inside the cooktop, a qualified technician should perform the diagnosis and repair.

Repair costs depend on which component has failed. If only the connector needs reseating, there is no parts cost and minimal labor. A replacement fan motor typically costs in the range of $25 to $80 for the part, while a filter board replacement can range from $60 to $180 or more. Professional labor charges will add to these figures depending on your location and service provider.