Seeing an error code flash on your kitchen appliance can be a stressful experience, especially when it involves water and electricity. If you own an LG dishwasher and suddenly see the AE error code appearing on the display, don't panic. While it certainly demands your attention, it is a specific diagnostic code designed to protect your home from water damage. Understanding what this code means is the first step toward getting your kitchen back to normal.
Understanding the AE Error Code on LG Dishwashers
In the world of LG appliances, the AE error code—often misread as 'Ae'—stands for a specific mechanical issue: the dishwasher has detected a leak.
Specifically, the appliance has moisture or standing water in the base pan, which is the bottom tray beneath the actual washing compartment.
This is a crucial safety feature.
If water were to reach the electrical components or spill onto your kitchen floor, it could cause significant damage.
Therefore, the dishwasher triggers the AE code to halt operation, prevent further leaking, and alert you that maintenance is required.
Immediate Steps to Take When You See AE
Before you start taking your appliance apart, safety must be your top priority.
If the dishwasher is actively running when the AE code appears, stop the cycle immediately.
If you can, turn off the water supply valve usually located under your kitchen sink.
Next, pull the dishwasher slightly away from the cabinet or, if possible, unplug it from the wall outlet or flip the circuit breaker at your electrical panel.
Never attempt to troubleshoot a wet appliance while it is connected to a live power source.
How to Troubleshoot and Fix the AE Error Code
Once you have secured the area and turned off the power, you can begin the diagnostic process.
Follow these steps to narrow down the source of the leak:
1. Inspect for External Leaks
Sometimes, the water in the pan isn't from the dishwasher itself but from a loose connection.
Check the supply line, the drain hose, and the connection points under your sink.
Ensure all fittings are tight and that there are no visible drips.
2. Check the Door Seal (Gasket)
One of the most common causes of the AE error is a compromised door gasket.
Inspect the rubber seal around the perimeter of the dishwasher door.
Look for cracks, food buildup, or debris that might be preventing a tight seal.
Even a tiny gap can allow steam and water to escape, eventually dripping down into the base pan and triggering the sensor.
3. Examine the Float Switch
The float switch is the component responsible for detecting the water in the bottom pan.
Sometimes, this sensor can become stuck due to debris or a buildup of soap residue.
Locate the sensor in the bottom pan (you may need to remove the kickplate) and ensure it can move freely.
If it is stuck in the 'up' position, the dishwasher will think there is a leak even if the bottom is dry.
4. Reset the Dishwasher
After you have cleaned the area and ensured there is no standing water in the pan, you need to reset the control board.
Leave the dishwasher unplugged or the breaker off for at least 15 to 20 minutes.
This allows the capacitors to discharge and the computer to clear the error state.
After the wait, restore power and start a short cycle to test if the code has cleared.
When to Call a Professional
If you have dried the base pan, checked the seals, and reset the unit, but the AE error code returns immediately, you may be dealing with a more complex issue.
This could involve a faulty leak sensor, a cracked sump assembly, or an internal pump leak that is difficult to access.
If you are not comfortable disassembling the internal components of your dishwasher, it is best to contact an authorized LG service technician.
Operating an appliance that has recurring internal leaks poses a risk of electrical shorts and fire hazards, so do not ignore a persistent error.
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 a leak or standing water in the base pan of the unit.
It is a safety measure to prevent water damage to your kitchen and the appliance's electrical components.
Can I keep using my dishwasher if the AE code is displayed?
No, you should not continue using the dishwasher.
The AE code prevents the appliance from operating to protect your home.
You must identify and fix the source of the leak or the sensor issue before attempting to run it again.
How do I reset an LG dishwasher after an AE error?
To reset the dishwasher, unplug it from the power source or turn off the circuit breaker for 15 to 20 minutes.
After the wait, restore power.
However, note that if the leak is not actually fixed, the code will likely return.
Is the AE error code always a sign of a real leak?
Usually, yes.
However, it can sometimes be triggered by a faulty or stuck float switch (leak sensor) if debris has accumulated around it.
It is important to check the base pan for physical water first.
Written by: Emma Johnson
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