Encountering the lg dishwasher ae error right after starting a wash cycle can be incredibly stressful, especially when the appliance starts beeping and the drain pump runs continuously. This specific fault code is a critical safety mechanism. It means that the leak sensor (a small styrofoam float switch located in the bottom base pan of the appliance) has detected pooled water. To prevent flooding your kitchen floor, the internal computer immediately halts the wash cycle and forces the drain pump to evacuate the tub. Fortunately, fixing the lg dishwasher ae error is often something you can handle yourself without having to pay for an expensive professional service call.
⚠️ SAFETY FIRST: Always unplug your dishwasher from the wall outlet or turn off its dedicated circuit breaker, and shut off the hot water supply valve under the sink before attempting to pull the machine out or inspect internal parts to prevent electric shock.
What Causes the LG Dishwasher AE Error?
When your digital screen flashes the lg dishwasher ae error, the machine is telling you there is a physical leak, or it mistakenly thinks there is one. The most frequent triggers for this water detection include:
- Excessive Suds: Using the wrong type of dish soap (like regular liquid dish soap instead of dishwasher detergent) creates massive amounts of foam that overflow into the bottom base pan, lifting the float switch.
- Leaking Door Gasket: Over time, the thick rubber seal around the perimeter of the dishwasher door can become brittle, torn, or coated in food debris, allowing water to escape during the spray cycle.
- Loose Hose Connections: The drain hose or the water inlet valve behind the lower kickplate might have a loose clamp or a tiny crack, slowly dripping water into the pan.
- Faulty Float Sensor: Sometimes, there is no actual leak. The delicate styrofoam float switch can get stuck in the “up” position due to a dead bug or a piece of debris, falsely triggering the code.
How to Fix the LG Dishwasher AE Error Step-by-Step
You can safely drain the base pan, find the source of the leak, and permanently clear the lg dishwasher ae error by following these actionable DIY troubleshooting steps:
- Drain the Base Pan: To immediately stop the constant pumping and clear the lg dishwasher ae error, you must remove the water from the bottom pan. Lay a few large towels on the floor. Pull the dishwasher slightly out from under the counter and gently tilt it backward at a 45-degree angle. You will see water pour out onto the towels.
- Inspect the Door Seal: Open the door fully and run a damp cloth along the entire rubber gasket. Look for any rips or hardened spots. If the seal is compromised, replacing it takes only five minutes and requires no tools.
- Check the Lower Kickplate: Remove the two screws holding the bottom front access panel (kickplate). Use a flashlight to look underneath the tub. If you see a dripping hose or a cracked water inlet valve, you have found the mechanical cause of the lg dishwasher ae error.
- Dry the Sensor: Use a hairdryer on a cool or warm setting to blow air underneath the dishwasher for about ten minutes. This ensures the leak sensor float is completely dry and drops back down into its resting position.
How to Prevent Future Leak Issues
The absolute best way to prevent the lg dishwasher ae error from returning is to strictly monitor your detergent usage. Never use standard hand-washing dish soap, and make sure your rinse aid dispenser is not leaking, as excess rinse aid can also cause extreme foaming.
When to call a professional?
If you have tilted the machine to drain the base pan, verified that you are using the correct detergent, and visually confirmed there are no dripping hoses, but the lg dishwasher ae error immediately comes back when you start a new cycle, you likely have a faulty electronic control board or a damaged wash pump seal. Because replacing a main circulation pump requires completely un-installing the appliance and working with complex high-voltage wires, it is highly recommended to contact a certified local appliance technician to safely diagnose and resolve the lg dishwasher ae error.