Home » Blog » DISHWASHER » LG Dishwasher AE Code: Step-by-Step Troubleshooting

LG Dishwasher AE Code: Step-by-Step Troubleshooting

Technically Reviewed by Oleg Chudnovski on Jan 21, 2026 | Written by Spark Service PRO Editorial Contributors

Having an LG dishwasher can make life a lot easier, until it doesn't. What does AE mean on the LG dishwasher? It's a sign that something's amiss, specifically a leak inside your appliance. This discovery can be unsettling, especially if you're not sure how to fix it. The AE code is the dishwasher's way of telling you there's water where it shouldn't be, triggering the float switch and bringing your dishwashing to a halt. Fortunately, understanding this issue and knowing how to address it can get your dishwasher back in action.

What Does the AE Error Code Mean?

The AE error code on an LG dishwasher serves as an immediate alert to an internal issue, primarily signalling the presence of unwelcome water inside the unit. The leak detection system ensures that the dishwasher doesn’t run when there is excessive moisture detected. Some common causes why the dishwasher may stop operating include clogged filters, buildup of soap, blocked drainage, internal water overflow, and more.

Why the Float Switch Activates

Any water-related concerns lead to the float switch activation, a safety feature designed to halt the dishwasher's operations to prevent water damage. The way it works is it runs the drain pump if the water rises too high, or it closes the water inlet valve. This feature is commonly triggered by leaks, high condensation, cracked hoses, and more.

What Triggers the AE Error Code

Understanding the variety of factors that can lead to the error code is key to addressing the problem effectively. Interestingly, the cause of the AE error code can range from simple user errors to more complex mechanical faults. Here's a table of common triggers that could lead to the detection of this error code:

Addressing the AE error code requires a methodical approach, starting with the simplest solutions and progressing to more technical inspections of the dishwasher's components. Each step not only brings one’s closer to the appliance leak diagnosis but also educates the user on the intricate workings of their appliance. This knowledge is invaluable, not just for troubleshooting current issues, but also for preventing future occurrences of the AE error code.

Regular maintenance and attentive use can significantly reduce the likelihood of facing such problems, ensuring the smooth operation of your LG dishwasher. Otherwise, it may come to the point where you need LG appliance repair to fix the malfunction.

How to Fix the LG Dishwasher AE Error Code

So, how do you clear the AE error in the LG dishwasher? Before going into more complex solutions, the first action is attempting to reset the LG dishwasher. A reset can often clear temporary glitches, including the AE code. Here’s how to reset an LG dishwasher:

Step 1: Reset the Dishwasher

Performing a hard reset on an LG dishwasher is easier than it sounds. Simply disconnect the appliance from its power source for about a minute. This break in power can reset the system, clearing temporary errors. After a minute, reconnect the power to see if the AE message on the LG dishwasher has been resolved.

Following the reset, if the LG dishwasher AE code no leak persists, it’s time to delve deeper into the dishwasher's anatomy to locate the source of the trouble.

Step 2: Check the Drain Pan for Water

Sometimes, the issue lies in the drain pan, which can accumulate water, either from a leak or a spill during loading. Inspect this area for any standing water and remove it if found. Checking the pan is a crucial step in ensuring there's no residual moisture, triggering the sensor.

Step 3: Reduce or Change Your Detergent

The type of detergent you use can influence the performance of your dishwasher. Too much soap or using the wrong type can create excess suds, leading to leaks or sensor triggers. Consider switching your detergent or adjusting the amount you use to see if it resolves the issue.

Exploring further, several components require attention if the initial steps don’t address the LG dishwasher AE code fix. These include the spray arms, door gasket, and water inlet valve, among others.

Step 4: Inspect and Clean Spray Arms

The spray arms play a pivotal role in your dishwasher's operation, distributing water throughout the unit. Clogged spray arms can cause improper water flow and leaks. Inspect and clean the arms to ensure they're functioning correctly.

Step 5: Examine the Door Gasket

The door gasket seals the door to prevent water from leaking out. Over time, it can wear down or become damaged, allowing water to escape. Examining and replacing the worn door gasket is an essential step in leak prevention. If you don’t know how to do this correctly, contact our certified appliance repair across Ontario, Canada.

Step 6: Test the Water Inlet Valve

This valve controls the flow of water into your dishwasher. If it's faulty, it can either let in too much water, leading to overflows, or restrict water flow, affecting the dishwasher's performance. Testing the valve with a multimeter can help determine if it's functioning as intended.

Step 7: Inspect the Float Switch Assembly

The float sensor monitors the water level in your dishwasher. If it's not working correctly, it might falsely detect a leak or fail to detect one, causing the AE error code. Inspecting and testing this sensor are crucial as part of the LG dishwasher reset AE code process.

Step 8: Check the Control Panel or PCB

The control panel, which acts as the brain of your dishwasher, could be the culprit. If the panel is malfunctioning, it might incorrectly display the AE error code even in the absence of a leak. Professional inspection by a certified dishwasher technician is advised to rule out or confirm control panel issues.

Step 9: Check for Internal Tub Leaks or Cracks

Any cracks in seams, in the tub, or around mounting points of your dishwasher, even insignificant ones, can cause minor leaks that trigger the AE code. You can try using a flashlight to inspect the bottom part of your appliance for any issues.

Step 10: Inspect the Circulation Pump and Hoses for Leaks

Lastly, it’s a good idea to check hoses for leaks and inspect the circulation pump, as the water can drip into the standing water pan and cause the AE error. To detect the pump seal leak, check for moisture or water damage around the pump.

When to Call a Professional Technician

If, after going through these steps, the LG dishwasher AE error code persists, it may be time for a same-day dishwasher repair. Some issues, especially those related to electrical components or deep within the dishwasher's inner workings, require specialized knowledge and tools to diagnose and repair.

Spark Service PRO uses manufacturer-approved parts and provides services for dishwasher repair in Toronto and the surrounding area, so don't delay in contacting us if you need help.