LG Dishwasher: error code AE, not draining
What is this symptom?
If your LG dishwasher displays the AE error code, it indicates a leak detection or flood sensor activation, halting operation mid-cycle. Water may accumulate in the tub, preventing proper drainage. This issue often arises from leaks or excessive suds caused by improper detergent use. Understanding the root causes can help you efficiently resolve the problem and restore your dishwasher's functionality.
Important Tips for LG Models
- AE (also E1) is specifically defined by LG as a leak detection error triggered by water in the base pan activating the float switch.
- LG documentation emphasizes proper leveling of dishwasher to prevent water pooling that can trigger AE.
Possible Causes
Water leak causing float/flood sensor activation
How to Identify: Water present beneath dishwasher base panel (remove kickplate, standing water in base pan, sensor triggered even if filter/drain clear.
Part: Float/flood sensor, base pan
Incorrect detergent use resulting in suds overflow
How to Identify: Excessive suds during/after cycle, soap foam coming out around door, error occurs after high‑suds cycle.
Part: Detergent dispenser/detergent
DIY Solutions
Drain and dry base pan to clear leak detection
- Turn off power at breaker and turn off water supply.
- Remove front kickplate and check base pan for water.
- Use towels or a wet/dry vacuum to remove water from pan.
- Allow area to dry fully before restoring power.
- Restore power and run a short cycle to see if AE clears.
Use correct detergent and reduce amount
- Remove any excess detergent from dispenser.
- Use only one HE dishwasher pod or measure powder detergent to marked levels.
- Avoid using liquid dish soap.
- Run a rinse cycle to clear suds if present.
Check and reseat door gasket
- Open dishwasher door and inspect gasket.
- Clean gasket and door edge with cloth.
- Press gasket firmly into its groove ensuring good seal.
- Run a test cycle with no dishes to check for leaks.
Inspect and straighten/clean drain hose
- Pull dishwasher out to access back.
- Inspect drain hose for kinks or clogs.
- Straighten hose and remove any debris.
- Reconnect hose securely and run test cycle.
Next step
Choose the next step for error code AE, not draining
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Float Switch
Detects the maximum water level to prevent overflow and potential flooding.
- Typical part-only price
- $15 - $40
- DIY difficulty
- Easy
- Estimated time
- 10-20 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Detergent Dispenser
Releases detergent, bleach, or rinse aid at the correct moment in the cycle.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Replace damaged door gasket
Replace float switch/sensor
Replace water inlet valve
Control board diagnosis and replacement
When to Call a Professional
Preventive Maintenance
-
Clean filter and drain area: Clogs that can lead to water pooling and leakage detection
Frequency: monthly -
Inspect door gasket: Leaks around door that trigger AE error
Frequency: quarterly -
Use correct HE detergent: Excessive suds and overflow
Frequency: every use -
Check dishwasher level: Water pooling due to improper leveling
Frequency: annually
Frequently Asked Questions
Why is my LG Dishwasher Error code AE, not draining?
How do I fix LG Dishwasher Error code AE, not draining myself?
How much does it cost to fix Error code AE, not draining?
When should I call a technician for Error code AE, not draining?
References & Sources
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Clogged drain filter or hose
- Faulty drain pump
- Blocked or kinked drain line
User Suggested Solutions
-
Check and clean the drain filter and hose. Remove the lower spray arm and filter cover, clean any debris, and reassemble.
-
Inspect the drain pump for obstructions and test its functionality. If faulty, replace the pump.
-
Examine the drain line for kinks or blockages. Straighten any kinks and clear any blockages found.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
Community Discussions
AE error code, beeping, draining issue
Taking apart the removable parts and reassembling resolved the issue.
Source: Reddit r/appliancerepair
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