LG Dryer Error Code 3C

The 3C code on an LG dryer indicates a motor relay short problem detected on the main PBA control board. The relay that switches power to the drive motor has been detected in a shorted condition. This prevents the dryer from running safely and requires inspection of the control board and drive motor. Power should be disconnected before any diagnostic work is performed.

No, you should not continue operating the dryer while the 3C error is active. A shorted motor relay can cause the motor to run uncontrolled or draw excessive current, which creates a risk of electrical damage and potential overheating. Disconnect power to the unit and leave it off until the fault is diagnosed and repaired.

Repair costs for a 3C error depend on which component is at fault. A replacement main PBA control board typically costs in the range of $80 to $200 or more for the part, while a replacement drive motor can range from $50 to $150 for the part. Adding professional labor, total repair costs commonly range from $150 to $350 or higher depending on your location and the specific parts required.

Diagnosing and repairing a 3C error requires checking the PBA motor relay and the drive motor, which involves working with the control board and internal wiring. A knowledgeable DIYer comfortable with appliance repair can inspect wiring connections and the motor for obvious issues, but replacing the control board or drive motor is a more involved repair. If you are not familiar with appliance electronics, a qualified technician is recommended.

A power reset by unplugging the dryer for a few minutes may temporarily clear the error display, but if the underlying motor relay short or motor fault is still present, the 3C code will return. The error code indicates a hardware fault that requires physical inspection and likely component replacement. A reset alone is not a fix for this problem.