How to Fix AE Error on LG Dishwasher: Troubleshooting and Solutions

By sarvottam

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If you own an LG dishwasher, you might have encountered the dreaded AE error code at some point. Don’t worry; you’re not alone! This error can be frustrating, but fear not – we’re here to help you troubleshoot and fix the issue. In this article, we’ll explore what the AE error code means, its possible causes, and provide step-by-step solutions to get your LG dishwasher back up and running smoothly.

What is the AE Error Code on LG Dishwashers?

The AE error code on LG dishwashers indicates a leak or water-related problem. When this error occurs, your dishwasher’s sensors have detected water in the base of the machine, triggering a safety mechanism to prevent any potential damage. This is a crucial safety feature as water leaks can lead to electrical malfunctions or even pose a risk of flooding in your kitchen.

Possible Causes of the AE Error Code

  1. Poor Door Seal: One of the most common causes of the AE error is a faulty door seal. Inspect the rubber gasket around the dishwasher’s door for any visible cracks, tears, or debris that might prevent it from forming a proper seal. Replace the gasket if necessary, and make sure the door closes securely.
  2. Blocked Drainage System: If the dishwasher is unable to drain water properly, it can lead to the AE error code. Check for clogs in the drainage system, including the drain hose and filter. Clean them thoroughly to allow water to flow freely.
  3. Faulty Water Inlet Valve: The water inlet valve is responsible for supplying water to the dishwasher. If it malfunctions or gets stuck, it can cause an overflow and trigger the AE error code. Inspect the valve for any signs of damage and replace it if needed.
  4. Worn-out Float Switch: The float switch is a small device located in the base of the dishwasher. Its role is to detect the water level. If the float switch is worn out or stuck, it can lead to inaccurate water level readings, triggering the AE error. Ensure the float switch moves freely and isn’t obstructed by debris.

Solutions to Fix the AE Error

  1. Inspect and Clean the Door Seal: Carefully examine the rubber gasket around the dishwasher door. Remove any debris or dirt that might be preventing the door from closing properly. If you notice any visible damage to the seal, consider replacing it. A properly sealed door will prevent water from leaking out during the wash cycle.
  2. Clear Drainage System: Check the dishwasher’s drain hose and filter for any blockages. Disconnect the hose and remove any debris. Rinse the filter thoroughly to ensure there’s no residue that could impede drainage. A clean drainage system will prevent water from pooling at the base of the dishwasher.
  3. Check and Replace the Water Inlet Valve: Inspect the water inlet valve for any signs of damage or wear. If it’s faulty, it may need replacement. Refer to your dishwasher’s manual or seek professional help to safely replace the water inlet valve.
  4. Test and Fix the Float Switch: The float switch should move freely and not be obstructed. Gently lift and release it a few times to ensure it moves without any issues. If you find that it’s stuck or damaged, consider replacing the float switch to resolve the AE error.

Remember to turn off the dishwasher and disconnect it from the power source before attempting any troubleshooting or repairs.


Dealing with the AE error on your LG dishwasher can be frustrating, but with the right troubleshooting steps, you can resolve the issue and have your dishwasher running smoothly again. Always prioritize safety and follow the manufacturer’s guidelines when attempting any repairs. If you’re unsure or uncomfortable with DIY fixes, don’t hesitate to seek professional help. Regular maintenance and proper care of your LG dishwasher can also prevent such errors in the future, ensuring its optimal performance for years to come.


  1. Q: Can I reset the AE error code on my LG dishwasher? A: Resetting the AE error code is not recommended as it is a safety feature indicating a potential water leak. Instead, focus on identifying and fixing the underlying issue causing the error.
  2. Q: Can a blocked drain hose cause the AE error code? A: Yes, a blocked drain hose can impede proper water drainage, leading to the AE error. Cleaning the drain hose can often resolve the issue.
  3. Q: How often should I check the dishwasher’s door seal for damage? A: It’s a good idea to inspect the door seal regularly, at least once a month, to ensure it’s in good condition and forming a proper seal.
  4. Q: Can I use the dishwasher with the AE error code displayed? A: It’s not advisable to use the dishwasher when the AE error code is showing, as it indicates a potential water leak that needs immediate attention.
  5. Q: Why is it essential to test the float switch when troubleshooting the AE error? A: The float switch detects water levels in the dishwasher. If it’s stuck or malfunctioning, it can cause inaccurate readings, leading to the AE error code.
  6. Q: Should I attempt to repair the dishwasher myself or call a professional? A: If you’re confident in your DIY skills and have some experience with dishwasher repairs, you can try fixing the issue yourself. Otherwise, it’s best to seek help from a qualified technician.
  7. Q: Can using incorrect dishwasher detergent trigger the AE error code? A: Using the wrong detergent might not directly cause the AE error code, but it can lead to excessive suds and drainage issues, which might contribute to the error.
  8. Q: How can I prevent the AE error from happening again in the future? A: Regularly inspect and maintain your dishwasher, including checking the door seal, cleaning the drainage system, and ensuring proper detergent usage, to prevent the AE error from recurring.

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