LG dishwashers are widely regarded for their cleaning efficiency and advanced technology.
However, like any complex appliance, they can occasionally throw a curveball in the form of an error code.
If you have recently encountered the "AE" error code on your dishwasher's display, you are likely dealing with a leakage issue.
This code is essentially a safety alert from your appliance’s control board, indicating that water has accumulated in the base pan of the machine where it shouldn't be.
What Does the AE Error Code Mean?
The AE error code on an LG dishwasher is a specific diagnostic indicator pointing toward water detection in the base pan.
Most modern LG dishwashers are equipped with a float switch at the very bottom of the unit.
If water leaks from the pump, hoses, or tub and collects in this bottom basin, the float switch is triggered.
The control board then halts the current cycle and displays "AE" to prevent potential water damage to your kitchen floor or short-circuiting of the internal components.
Important Safety Precautions Before You Begin
Before you attempt to fix the AE error code, your safety must be the priority.
Electricity and water are a dangerous combination.
Always start by unplugging the dishwasher from the wall outlet.
If the unit is hard-wired, switch off the appropriate circuit breaker in your home's electrical panel.
Additionally, turn off the water supply valve connected to the dishwasher to prevent any further leakage while you are performing your inspection.
How to Fix the AE Error Code: A Step-by-Step Guide
Resolving this issue involves finding the source of the leak and ensuring the sensor is working correctly.
Follow these steps to troubleshoot the problem effectively.
Step 1: Drain the Base Pan
The first step is to remove the accumulated water that triggered the sensor.
Pull the dishwasher slightly out from under the counter.
Carefully tilt the unit backward at about a 45-degree angle.
This will allow the water trapped in the base pan to drain out onto the floor.
Be prepared with towels or a wet-dry vacuum to clean up the water immediately.
Once the water is gone, the sensor should reset, allowing you to proceed with troubleshooting.
Step 2: Inspect for Visible Leaks
With the water removed, take a flashlight and inspect the underside of the dishwasher.
Look for wet spots or signs of calcium buildup on the hoses, pump, and connections.
Often, a loose clamp or a cracked drain hose is the culprit.
If you find a loose hose, tighten the clamp.
If a hose is cracked or damaged, it will need to be replaced.
Even a slow drip over several days can accumulate enough water to trigger the AE alarm.
Step 3: Check the Float Switch and Sensor
Sometimes, the AE error is a false positive caused by a stuck or faulty float switch.
This switch is a small plastic device in the base pan.
If it is obstructed by debris, food particles, or mineral buildup, it may think there is water present when there isn't.
Clean the area around the float switch and ensure it moves freely.
If the switch feels stuck, you may need to clean it with a mild solution or replace it if it appears damaged.
Step 4: Verify the Drain Hose Connections
Ensure that your drain hose is installed correctly, specifically that it has a "high loop" or is connected to an air gap.
If the drain hose is positioned incorrectly, sink water can backflow into the dishwasher, eventually causing leaks or triggering the base pan sensor.
Verify that all connections to the garbage disposal or sink drain are tight and free of leaks.
Preventing Future AE Error Codes
To keep your dishwasher running smoothly, avoid using excessive amounts of detergent, which can cause oversudsing and leaking.
Regularly inspect the door gasket for tears, as a poor seal is a frequent cause of water escaping the tub and landing in the base pan.
Finally, clean your filter monthly to ensure optimal drainage and reduce the strain on the pump.
Conclusion
The AE error code on an LG dishwasher is designed to protect your home from water damage, so take it seriously.
While it can be frustrating, many instances of this error are caused by minor leaks or debris that can be fixed with basic DIY skills.
By systematically checking the base pan, inspecting hoses, and cleaning the sensor, you can get your dishwasher back to working order without the need for an expensive service call.
However, if the leak persists or if you are uncomfortable working with internal components, don't hesitate to contact a professional technician to avoid further complications.
Frequently Asked Questions (FAQ)
What does the AE error code mean on an LG dishwasher?
The AE error code indicates that the dishwasher has detected water in the base pan, which is a safety mechanism to prevent leakage damage.
Can I fix the AE error myself?
Yes, often the issue is caused by a small amount of trapped water or a minor leak.
You can troubleshoot by tilting the unit to drain the water and checking for loose hoses.
Why does my dishwasher keep showing the AE error even after I drain it?
If the error persists, there is likely an active leak that needs to be located, or the float switch/sensor itself may be faulty and in need of replacement.
Does too much detergent cause the AE error?
Yes, using too much detergent can lead to excessive suds that leak out of the tub and into the base pan, triggering the AE error code.
Written by: Ruby Morris
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