LG Dryer Error Code FC

FC on an LG dryer stands for an invalid power source frequency error. The dryer's control board monitors the incoming AC frequency through a sensor circuit, and when it detects a frequency outside the expected range, it displays FC and stops operation. The cause is most often a fault in the frequency sensor circuit or the main control board rather than an actual problem with your home's power supply.

No, you should not continue operating the dryer while the FC code is active. The dryer has halted operation specifically to protect its components from running on an incompatible or unstable power frequency. Running the dryer in this condition could cause further damage to internal electronics. The issue should be diagnosed and resolved before resuming use.

Repair costs vary depending on the root cause. If only a wiring connection needs to be corrected, costs could be minimal, primarily covering a service call in the range of $75 to $150. Replacing the main control board, which is a common fix for persistent FC errors, typically brings total repair costs to somewhere between $150 and $350 depending on parts and labor rates in your area.

Some basic checks can be performed at home, including verifying that the dryer is connected to the correct power source and inspecting the power cord and terminal block connections for loose or damaged wiring. However, diagnosing and replacing the frequency sensor circuit components or the main control board typically requires technical knowledge and proper tools. If you are not comfortable working with appliance electronics, a qualified technician should handle the repair.

A basic reset, such as unplugging the dryer for a few minutes and plugging it back in, may temporarily clear the display, but the FC code will return if the underlying cause has not been corrected. The frequency sensor circuit or power supply issue must be properly diagnosed and repaired for the error to be permanently resolved.