What is the most common problem with the LG dishwasher?

The most common problem with the LG dishwasher is drainage failure leading to OE error code, followed by not cleaning properly and odor issues. The OE error means the dishwasher is not draining within 10 minutes, usually because the cylindrical filter assembly in the bottom is clogged with food particles, grease, and debris. Many owners forget to clean this filter monthly, causing water to back up, poor washing, and foul odors. A kinked or clogged drain hose connected to the garbage disposal or sink air gap also triggers OE. The second most common issue is poor cleaning performance and spots or film left on dishes, often caused by clogged spray arm holes, hard water without rinse aid, using too little or too much detergent, or overloading that blocks spray rotation. Third is leak detection errors AE and LE, where water leaks into the base pan from a loose hose, cracked spray arm, or door gasket, causing the dishwasher to run the drain pump continuously and not start a new cycle. Fourth is door latch and control lock issues where the dishwasher thinks the door is open. Less common but reported are heater and temperature sensor failures causing poor drying, and inlet valve failures causing IE no-fill errors. Regular monthly filter cleaning, spray arm cleaning, and using rinse aid and quality detergent prevent most LG dishwasher problems.