LG Washer Error Code DC3

DC3 indicates a door check failure that occurs during a boil wash or high-temperature cycle. The washer detected that the door either opened or failed to confirm a locked state after the door close operation. This can be caused by pressure buildup inside the drum, a worn door gasket, or a faulty door lock assembly.

You should not continue running the washer when DC3 is active, especially during a boil or high-temperature cycle. An improperly secured door during a high-heat cycle can result in steam or hot water escaping the drum. Address the door locking issue before resuming operation.

If the fix is simply closing the door properly, there is no parts cost. Replacing a door lock assembly typically costs between $25 and $80 for the part, with labor adding $75 to $150 if a technician is needed. Door gasket replacement parts generally range from $30 to $100 depending on the model.

Start by firmly closing the door until you hear a click, then restart the cycle. If the error returns specifically during high-temperature cycles, inspect the door gasket and door strike for wear or misalignment. If the door appears properly closed but the error persists, the door lock assembly or its wiring connection may need to be inspected and possibly replaced.

A reset may temporarily clear the DC3 code, but if the underlying cause is not resolved, the error will return when the same cycle conditions occur. Resetting is a useful first step to rule out a one-time glitch, but persistent DC3 errors require hands-on inspection of the door, gasket, and lock assembly.