LG dishwasher error code ae

Are you puzzled by the AE error code flashing on your LG dishwasher? Relax; it’s not an unsolvable enigma! This smart appliance is simply communicating an issue to you. Often, this mystery revolves around a water leak somewhere in the system. Rather than shying away, let’s get down to demystify this cryptic message together. Knowing the reasons behind this error code can be a game-changer. It not only empowers you to troubleshoot simple issues but also makes informed decisions when professional intervention is needed.

So, whether you’re a DIY enthusiast, a curious homeowner, or a hands-on landlord, this article is tailored just for you! Get ready to take a dive into the world of LG dishwasher error codes, specifically, the infamous AE error code. A world where comprehension meets solution, offering a seamless, do-it-yourself experience. Hold tight; an insightful journey awaits!

LG dishwasher error code ae

What Does the LG Dishwasher Error Code AE Mean?

The LG dishwasher error code AE is a significant fault indicator. It alerts the user to a possible leak in the dishwasher. In LG’s error code system, ‘AE’ stands for ‘Auto Error.’ This means the dishwasher has automatically detected an issue. A leak can occur for several reasons. It could be due to a faulty door seal, damaged hoses, a malfunctioning pump, or even a crack in the tub. This error code is an automatic safety feature built into LG dishwashers designed to prevent further damage or flooding. When the AE code is displayed, the dishwasher stops all operations to prevent exacerbating the leakage.

The detection of leaks isn’t always perfect. Sometimes, the dishwasher might display the AE error code due to a sensor error or a temporary glitch. But if the error code persists after resetting the appliance, it’s crucial to investigate and resolve the issue to prevent potential water damage and ensure the dishwasher is operating safely and effectively.

It’s always recommended to consult the dishwasher’s manual or contact a professional technician when facing error codes. However, there are also several troubleshooting steps you can undertake yourself, as outlined in our detailed guide above.

Why Does the LG Dishwasher Display the Error Code AE?

This dreaded error code AE can occur due to several reasons. Let’s dissect the main causes in detail:

1. Faulty Door Seal

The most common cause of the AE error code is a defective or damaged door seal. Over time, the seal may wear out, allowing water to leak out. If you notice water pooling under the dishwasher door, you can be pretty sure the seal is to blame.

2. Loose Water Connections

Another possible cause could be loose water connections. The dishwasher’s internal system contains several hoses and connections. If any of them are not secured tightly, water can escape, triggering the AE error code.

3. Damaged or Cracked Tub

A damaged or cracked dishwasher tub is a serious problem and a less common cause of the error code AE. If the tub has a hole or crack, even a small one, it could lead to significant leakage.

4. Faulty Float Assembly

The float assembly in your dishwasher helps control the water level. If it’s faulty, your dishwasher might overfill, causing a leak. This can also result in the AE error code.

5. Pump or Motor Seals

Lastly, damaged seals on the dishwasher’s pump or motor can lead to leaks. These seals can wear out over time, similar to the door seal, and may need replacement.

Remember, each dishwasher is unique, and so are its issues. Always consider seeking help from a professional if you’re unsure about the process or if the problem persists. In the following section, we’ll discuss how to fix the LG dishwasher AE error code.

How to Fix lg dishwasher error code ae?

Fix 1: Inspecting and Replacing the Door Seal

A faulty door seal is the most common culprit behind the AE error code. Here are the steps to inspect and replace it:

  • Step 1: Inspect the Door Seal: Begin by visually inspecting the door seal. If it’s visibly worn out or damaged, you’ve likely found the issue.
  • Step 2: Perform a Paper Test: For a more subtle seal issue, try the paper test. Shut the dishwasher door on a thin piece of paper. If the paper slips out easily, the seal may not be doing its job.
  • Step 3: Order a Replacement: If the seal is indeed faulty, you’ll need a replacement. You can find one online or at an appliance parts store. Ensure the replacement seal is compatible with your LG dishwasher model.
  • Step 4: Remove the Old Seal: To remove the old seal, start at one corner and gently pull it out. It should come out without much resistance.
  • Step 5: Clean the Groove: Before installing the new seal, clean the groove where the seal sits. Use a damp cloth to remove any debris or old seal residues.
  • Step 6: Install the New Seal: Position the new seal with the flap facing inward. Push it into the groove, starting at one corner and working your way around.

After installing the new seal, run a quick wash cycle to check if the AE error code still appears. If it doesn’t, congratulations, you’ve just fixed your dishwasher! If it does, you might want to explore other potential causes of the AE error code.

Fix 2: Checking and Securing Water Connections

Loose water connections are another common reason for the AE error code. Here’s how to check and secure them:

  • Step 1: Unplug and Disconnect: Always begin by unplugging the dishwasher and disconnecting it from the water supply for safety.
  • Step 2: Access the Back Panel: Remove the back panel of the dishwasher. You may need a screwdriver for this. Keep the screws in a safe place; you’ll need them later.
  • Step 3: Inspect the Hoses: Look for the water inlet and drain hoses. Check them for any signs of wear and tear.
  • Step 4: Check the Connections: Ensure the hoses are connected securely. If any of the connections are loose, water could be leaking.
  • Step 5: Tighten the Connections: If you find any loose connections, tighten them. Do not overtighten, as this can damage the connections.
  • Step 6: Check for Leaks: Once all connections are secure, you can temporarily reconnect the water supply. Carefully look for any leaks.
  • Step 7: Reassemble the Dishwasher: If no leaks are found, disconnect the water supply again. Replace the back panel using the screws you kept aside.
  • Step 8: Run a Test Cycle: Plug the dishwasher back in and run a short cycle to see if the AE error code has been resolved.

If the error persists after trying both fixes, it’s time to call a professional. Remember, these are basic fixes. There could be more serious issues, like a damaged tub or a faulty float assembly, which require professional intervention.

Fix 3: Inspecting and Replacing the Pump or Motor Seals

Faulty seals on the pump or motor can lead to leakage and the AE error code. Here’s how to inspect and possibly replace them:

  • Step 1: Disconnect and Unplug: Start by disconnecting the dishwasher from the water supply and unplugging it from the power source.
  • Step 2: Remove Lower Panel: The lower panel or kick plate of your dishwasher usually hides the pump and motor. Remove this panel; you might need a screwdriver.
  • Step 3: Locate the Pump and Motor: Locate the dishwasher’s pump and motor. They should be easily identifiable once the lower panel is removed.
  • Step 4: Inspect the Seals: Inspect the seals around the pump and motor. Look for any signs of wear, tear, or damage.
  • Step 5: Order Replacements: If you notice any damage on the seals, you’ll need to replace them. Ensure you order replacements specifically designed for your dishwasher model.
  • Step 6: Remove Damaged Seals: Carefully remove the damaged seals. Depending on your model, you might need a wrench or screwdriver.
  • Step 7: Install New Seals: Fit the new seals into place. Ensure they’re installed correctly and securely.
  • Step 8: Reassemble and Test: Replace the lower panel and reconnect the dishwasher. Run a quick cycle to check if the AE error code still appears.

Remember, handling the pump and motor involves some level of technical skill. If you’re uncomfortable performing these steps, don’t hesitate to call a professional. A trained technician can ensure these fixes are implemented correctly and safely.

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Fix 4: Inspecting and Repairing the Float Assembly

A faulty float assembly can also cause the AE error code by allowing your dishwasher to overfill and leak. Here’s how to inspect and repair it:

  • Step 1: Disconnect the Dishwasher: Unplug your dishwasher and disconnect it from the water supply to avoid any electrical shock or water mess.
  • Step 2: Remove the Dishwasher’s Lower Rack: Take out the lower rack of your dishwasher to access the float assembly at the bottom of the dishwasher tub.
  • Step 3: Inspect the Float Assembly: Check the float assembly. It should move up and down freely. If it’s stuck or sluggish, it may be causing the overfilling issue.
  • Step 4: Clean the Float Assembly: Sometimes, a good cleaning can fix a sticking float assembly. Use a mild cleaner to wipe away any gunk or debris.
  • Step 5: Test the Float Assembly: After cleaning, check the movement of the float again. If it still doesn’t move freely, it might be damaged and need replacement.
  • Step 6: Order a Replacement: If you need a new float assembly, order one designed for your specific dishwasher model.
  • Step 7: Replace the Float Assembly: Remove the old float assembly and install the new one. Usually, it can be unscrewed or popped off, and the new one can be screwed or snapped into place.
  • Step 8: Reassemble and Test: Replace the dishwasher’s lower rack. Plug in and reconnect the water supply to your dishwasher. Run a short cycle to check if the AE error code still shows up.

With a little patience and careful attention, you can handle these fixes at home. However, if you’re ever unsure, it’s best to consult with a professional. These steps are meant to guide you, but each dishwasher and situation is unique. Always prioritize safety and the health of your appliances.

Fix 5: Repairing or Replacing a Cracked Dishwasher Tub

A cracked or damaged dishwasher tub is a less common but serious cause of the AE error code. Here’s how to handle this problem:

  • Step 1: Disconnect the Power and Water Supply: Firstly, disconnect the dishwasher from the power source and water supply to ensure safety.
  • Step 2: Empty the Dishwasher: Remove all the dishes and racks from the dishwasher for a clear view and access to the tub.
  • Step 3: Inspect the Tub: Visually inspect the dishwasher tub for cracks or holes. Pay close attention to the corners and seams.
  • Step 4: Use a Flashlight: A flashlight can help you see better. Shine it on the tub’s walls to locate any hairline cracks.
  • Step 5: Repair Minor Cracks: For minor cracks, you can use a dishwasher-safe sealant available at appliance parts stores. Follow the manufacturer’s instructions for application.
  • Step 6: Test for Leaks: Once the sealant is dry, run a quick wash cycle to check if water is still leaking.
  • Step 7: Consider Professional Help: If the crack is large, or if the sealant doesn’t fix the leak, it might be time to call in a professional. They can assess whether the tub can be repaired or if it needs to be replaced.
  • Step 8: Replacement: If a replacement is necessary, it’s recommended to have this done by a professional, as it involves disconnecting and reconnecting plumbing and electrical connections.

Fixing a cracked tub isn’t a common DIY project, but it’s good to know the steps. Understanding what’s involved can help you communicate more effectively with professionals and make informed decisions about your appliance.

Fix 6: Cleaning the Drain Pump Filter

A blocked drain pump filter can cause water to back up and leak, leading to the AE error code. Here’s how to clean it:

  • Step 1: Disconnect the Dishwasher: Start by unplugging the dishwasher and disconnecting it from the water supply for safety.
  • Step 2: Access the Drain Pump Filter: Locate the drain pump filter, typically found at the bottom of the dishwasher.
  • Step 3: Remove the Filter: Carefully remove the filter. Some models require you to turn it counterclockwise, while others might have a latch to release.
  • Step 4: Clean the Filter: Rinse the filter under warm water. Use a soft brush to scrub away any residue. Be gentle to avoid damaging the filter.
  • Step 5: Inspect the Filter: Check the filter for any signs of damage. If it’s torn or damaged, you’ll need a replacement.
  • Step 6: Order a Replacement: If the filter is damaged, order a new one that is compatible with your dishwasher model.
  • Step 7: Replace or Reinstall the Filter: If the filter is not damaged, reinstall it. If you’ve ordered a replacement, install it once it arrives.
  • Step 8: Run a Test Cycle: With the filter back in place, reconnect the dishwasher and run a test cycle. Check if the AE error code still appears.

Regular cleaning of the filter can prevent many problems and prolong the life of your dishwasher. If you still see the error code after all these steps, it’s likely a more serious issue that requires professional attention.

Fix 7: Resetting the Dishwasher

Sometimes, the AE error code might be due to a glitch in the system. In such cases, a simple reset might fix the issue. Here’s how:

  • Step 1: Unplug the Dishwasher: Disconnect the dishwasher from the power source. This is the first step towards resetting the system.
  • Step 2: Wait for a Few Minutes: Wait for about 10-15 minutes. This allows the dishwasher’s internal computer to reset.
  • Step 3: Plug the Dishwasher Back In: After waiting, plug the dishwasher back into the power source.
  • Step 4: Run a Quick Cycle: Run a quick cycle to check if the AE error code has been cleared.
  • Step 5: Check for the Error Code: Once the cycle is completed, check the display. If the AE code is gone, the reset was successful.
  • Step 6: Repeat the Process: If the error code persists, repeat the process. If it still doesn’t work, other issues are likely at play.
  • Step 7: Consult the Manual: Refer to your dishwasher’s user manual. It might contain additional reset instructions specific to your model.
  • Step 8: Call a Professional: If all else fails, or if you’re uncomfortable performing these steps, call a professional. Persistent error codes might be indicative of a larger issue.

A simple reset is an easy solution that often gets overlooked. It might not always fix the issue, but it’s certainly worth a shot before diving into more complex repairs or calling a professional. Remember to always disconnect any appliance from the power source before attempting any repairs.

Fix 8: Checking and Clearing the Drain Hose

A clogged drain hose can cause the dishwasher to leak and trigger the AE error code. Here’s how to handle it:

  • Step 1: Disconnect and Unplug: For safety reasons, disconnect the dishwasher from the power source and the water supply.
  • Step 2: Access the Drain Hose: The drain hose typically connects to the pump under the dishwasher. You may need to remove a panel to access it.
  • Step 3: Disconnect the Drain Hose: Carefully disconnect the drain hose. Have a bucket or towels ready to catch any water that might spill.
  • Step 4: Check the Hose: Inspect the hose for any obvious blockages. If you see one, use a straightened coat hanger or a similar tool to carefully dislodge it.
  • Step 5: Rinse the Hose: To clear out any non-visible blockages, try running water through the hose. You can use a garden hose or a sink sprayer.
  • Step 6: Reconnect the Hose: After cleaning the hose, reconnect it to the pump. Ensure the connection is secure.
  • Step 7: Test the Dishwasher: Reconnect the water supply and plug in the dishwasher. Run a cycle to see if the AE error code still appears.
  • Step 8: Call a Professional: If the error code persists, it may be time to call a professional. Persistent error codes can indicate a more serious issue that needs professional attention.

Clearing a clogged drain hose is a straightforward fix that can often solve the AE error code. Regularly checking and cleaning the hose can help prevent this issue in the future. Always be careful when dealing with water connections to avoid causing further issues or water damage.


In wrapping up, troubleshooting LG dishwasher error code AE is manageable with the right steps. However, don’t hesitate to call professionals when needed. These seven fixes offer a solid starting point, but remember, each appliance is unique. Always prioritize safety and appliance health. Regular maintenance can prevent such errors from occurring in the first place. A well-maintained dishwasher is key to a smooth-running kitchen. Happy dishwashing!


What does the AE error code on my LG dishwasher mean?

AE error code on your LG dishwasher indicates a leak in the system.

Can I fix the AE error code on my LG dishwasher myself?

Yes, you can attempt to fix the error yourself using our guide, but always prioritize safety.

When should I call a professional to fix the AE error code?

Call a professional if you’re uncomfortable performing the fixes, or if the error code persists after trying them.

Can a blocked drain hose cause the AE error code?

Yes, a blocked drain hose can lead to water leakage, triggering the AE error code.

How can I prevent the AE error code on my LG dishwasher?

Regular maintenance and checking connections, filters, and seals can help prevent this error.

Does resetting the dishwasher always clear the AE error code?

Resetting can often clear the AE code, but if the code persists, it indicates a more serious issue.

Could a cracked tub be causing the AE error code on my dishwasher?

Yes, a cracked or damaged tub can cause water leakage, leading to the AE error code.

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