If your LG dishwasher suddenly stops mid-cycle and shows the AE error code, it can feel frustrating — especially when you’re left with a machine full of dirty dishes and no clear explanation. The good news is that this issue is often related to leaks or moisture detection, and in many cases you can troubleshoot it yourself.
In this guide, you’ll learn what the AE error means, what causes it, and step-by-step actions you can take to fix it safely.
What Does the LG Dishwasher AE Error Code Mean?
The AE error code on an LG dishwasher indicates that the appliance has detected a possible water leak. Modern LG dishwashers are equipped with a safety feature that monitors the base pan of the unit. If moisture is detected, the dishwasher automatically stops working to prevent flooding or internal damage.
This protective shutdown helps avoid costly repairs — but it also means you need to identify the source of the problem before using the dishwasher again.
Common Causes of the AE Error Code
Several issues can trigger the AE error. Understanding the root cause will help you choose the right fix.
Typical reasons include:
- Loose or damaged water supply hoses
- Improper dishwasher leveling
- Excessive detergent causing oversudsing
- Faulty door gasket or seal
- Cracked internal components or sump leaks
- Clogged filters or drainage issues
Sometimes, the error may appear even after a minor spill or a tilted installation, so don’t assume the worst immediately.
Quick Troubleshooting Steps You Can Try
Before calling for service, try these practical steps. They can often resolve the AE error quickly.
1. Turn Off and Unplug the Dishwasher
Start by disconnecting power to reset the system.
Steps:
- Press the power button to turn off the dishwasher
- Unplug it from the outlet or switch off the circuit breaker
- Wait at least 10–15 minutes
- Restore power and try running a short cycle
If the error disappears, it may have been a temporary sensor trigger.
2. Check for Visible Water Leaks
Carefully inspect around and under the dishwasher.
Look for:
- Pooled water on the floor
- Damp cabinets or baseboards
- Dripping hoses or loose fittings
If you find moisture, dry the area completely before restarting the machine.
3. Inspect the Door Seal
A worn or dirty door gasket can allow water to escape during operation.
What to do:
- Open the dishwasher door
- Examine the rubber seal for cracks, gaps, or debris
- Clean it gently with warm water and mild soap
If the gasket looks damaged, replacement may be necessary.
4. Make Sure the Dishwasher Is Level
Improper installation can cause water to collect in the wrong places.
Use a spirit level to check alignment:
- Front-to-back
- Side-to-side
Adjust the dishwasher legs if needed. Even a small tilt can lead to leakage warnings.
AE Error Code Causes and Fixes Overview
| Cause | Symptoms | Possible Fix |
|---|---|---|
| Loose hose connection | Water behind or under unit | Tighten or replace hose |
| Oversudsing | Foam inside tub | Use correct detergent amount |
| Faulty door gasket | Water near door | Clean or replace seal |
| Internal leak | Persistent AE error | Professional inspection |
| Drain blockage | Standing water | Clean filters and drain |
When to Call a Professional Technician
If you’ve tried basic troubleshooting and the LG dishwasher AE error code keeps returning, it’s time to consider expert help.
You should book service if:
- The error appears immediately after reset
- You hear unusual pump or motor noises
- Water is leaking from inside the unit
- The dishwasher stops filling or draining properly
A certified technician can safely access internal components like the sump assembly, circulation pump, or moisture sensor — areas that are difficult and risky for DIY repair.
How to Prevent the AE Error in the Future
Preventive care can reduce the chances of seeing this error again.
Helpful maintenance tips:
- Use only recommended dishwasher detergent
- Clean filters monthly
- Check hoses every 6 months
- Avoid overloading the dishwasher
- Ensure proper installation and leveling
Regular maintenance not only prevents leaks but also extends the lifespan of your appliance.
Final Thoughts
The LG dishwasher AE error code is designed to protect your home and appliance from water damage. While it can be inconvenient, many causes are simple to identify and fix with careful inspection and basic troubleshooting.
However, if the issue persists or you suspect an internal leak, scheduling professional repair is the safest and most reliable solution. Acting quickly can prevent more serious damage — and get your kitchen routine back on track faster.