LG Washer Error Code 1LC

The 1LC code signals a water leakage error in the upper washer section of your LG unit. The machine has detected that water is escaping from somewhere in the upper wash compartment's water circuit, which includes the hoses, water inlet valve, and tub connections. The washer stops operation automatically to prevent water damage. You will need to locate and repair the leak before normal operation can resume.

No, you should not operate the washer while the 1LC code is active. Running the machine with an active leak can cause water damage to your flooring, cabinetry, or subfloor, and could create an electrical hazard if water reaches internal wiring or the motor. Keep the washer off and unplugged until the leak source has been identified and repaired.

Repair costs depend on the source of the leak. Replacing a simple hose or tightening a loose clamp can cost very little, typically in the range of $10 to $40 for parts if a hose needs replacement. A faulty water inlet valve generally costs between $25 and $80 for the part, with additional labor if a technician is hired. More complex repairs involving the tub seal or internal fittings can bring total costs into the $150 to $350 range including labor.

Start by inspecting the base of the machine for standing water, then trace the leak back to its source by checking all hose connections, clamps, the water inlet valve, and tub fittings. Tighten any loose connections and replace cracked or damaged hoses and valves as needed. If oversudsing is suspected, switch to a proper HE detergent and use the recommended amount. For leaks originating from the tub seal or valve body, component replacement is typically required.

A power reset may temporarily clear the 1LC code, but it will return as soon as the washer runs a cycle and the leak is still present. The code is triggered by an actual leak condition, not a sensor glitch, so resetting the machine without fixing the underlying cause will not resolve the problem. A permanent fix requires locating and repairing the source of the water leakage.