LG Dryer Error Code 3E

The 3E code on an LG dryer indicates a malfunction detected in the motor relay circuit. This circuit is responsible for controlling the drive motor that spins the drum. The fault can be caused by a defective relay on the control board, a faulty motor connection cable, a broken drum belt, or a failed drive motor. The dryer will not operate until the fault is resolved.

A power reset by unplugging the dryer for a few minutes may temporarily clear the 3E code, but it will return if the underlying fault in the motor relay circuit is not corrected. Resetting is useful for ruling out a one-time glitch, but if the code reappears after restarting, a physical inspection of the motor cable, belt, and PCB relay is necessary.

Repair costs vary depending on the root cause. A drum belt replacement typically runs between $20 and $60 for the part, while professional labor can add $75 to $150. If the main PCB requires replacement, parts alone can range from $100 to $250 or more, plus labor. A motor replacement, if needed, generally falls in the $80 to $200 range for parts.

Some causes of the 3E code are DIY-friendly. Checking and reseating the motor connection cable or replacing a broken drum belt are tasks many experienced DIYers can handle with basic tools. However, testing and replacing the motor relay circuit on the PCB requires comfort with electrical components and is often better handled by a qualified technician.

No, it is not advisable to continue using the dryer while the 3E code is active. The dryer is designed to halt operation when this fault is detected to prevent damage to the motor, control board, or associated wiring. Running the machine with a known relay circuit fault could worsen the failure and increase repair costs.