LG Washer Error Code DO

The DO code stands for Door Open error. It means the washer's control board cannot confirm the lid is properly closed during intermittent spin, normal spin, or a delay start cycle. The machine stops operation as a safety measure until a secure lid condition is detected. The most common cause is a missing or faulty magnet in the Lid-B component.

No. The washer intentionally stops operation when the DO error appears because an open or unsecured lid during spin presents a serious safety hazard. Do not attempt to bypass or ignore the error. Resolve the underlying cause before running another cycle.

If the fix is simply closing the lid, there is no cost involved. If the Lid-B component needs to be replaced due to a missing or damaged magnet, parts typically range from around $15 to $50 depending on the specific model. If a technician is needed for diagnosis and replacement, total repair costs including labor generally fall in the range of $80 to $200.

Start by closing the lid firmly and checking whether the error clears. If the error remains with the lid closed, inspect the Lid-B component for a magnet. If the magnet is missing, Lid-B needs to be replaced. Also check that the lid is not warped or misaligned, as poor fitment can prevent the sensor from detecting the magnet even when the lid appears shut.

A reset may temporarily clear the code display, but if the root cause is a missing magnet in Lid-B or a damaged lid component, the error will return as soon as the washer reaches the spin phase or a delay start is activated. A reset is not a repair. The lid detection system must be functioning correctly for the machine to operate without the error returning.