LG Washer Error Code OC

The OC code on an LG washer signals an overflow error, meaning water inside the tub has risen to an unsafe level. This typically occurs because the water inlet valve is not shutting off properly, the water level sensor has failed and cannot signal the control board to stop filling, or the drain hose is clogged and water cannot exit the machine. The washer halts operation to prevent flooding until the issue is resolved.

No, you should not attempt to run a wash cycle while the OC error is active. The code indicates the machine has detected or is at risk of an overflow, which means water could escape the tub and cause water damage to your floor or surrounding areas. Turn off the washer and shut off the water supply valves before inspecting any components.

Repair costs depend on which component has failed. A replacement water inlet valve typically ranges from roughly 25 to 80 dollars for the part, while a water level sensor or pressure switch generally falls in the 15 to 50 dollar range. If you hire a technician, labor charges will add to these costs, with total service calls commonly ranging from 100 to 250 dollars depending on your location and the specific parts needed.

Start by checking the water inlet valve for debris, mineral buildup, or a stuck solenoid that prevents it from closing. Next, inspect the drain hose for clogs or improper installation height that could cause a siphoning condition. If both check out, test the water level sensor for accurate operation across different fill levels, as a degraded sensor is a common source of this error. Replacing the faulty component, whether the valve or the sensor, is typically required to clear the error permanently.

A reset may temporarily clear the OC code from the display, but it will not fix the underlying hardware problem. If the water inlet valve is stuck open or the water level sensor is faulty, the error will return as soon as the machine attempts another fill cycle. Resetting is only useful as a diagnostic step to confirm the error is reproducible, not as a repair solution.