- Appliances
- Dishwashers
AE
LG dishwasher AE or E1: leak detected

Evidence linked to this decision
View source: LG USA dishwasher AE and E1 troubleshootingRisk level
High
Professional inspection is recommended.
Urgency
Immediate
Quick answer
AE or E1 means water has activated the dishwasher float switch. Disconnect power close the water supply if leakage is visible and stop using the appliance.
Safety first
Stop and check this first
- Treat AE or E1 as a water and electricity risk. Disconnect power stop the water supply when leakage is visible and do not use the dishwasher again until the source has been resolved.
Safe checks you can perform
- Disconnect power and stop the water supply
- Inspect only visible external conditions
- Confirm the detergent used
Leave these tasks to a qualified professional
- Do not attempt this professional task: Locate and repair the source of water
- Do not attempt this professional task: Correct installation or levelling faults
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Locate and repair the source of water
What they doA technician should inspect the base pan float switch door seal spray system hoses and model-specific leak paths then dry and test the appliance safely.
Correct installation or levelling faults
What they doAn installer should secure and level the dishwasher when the cabinet mounting or alignment lets water collect incorrectly.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Disconnect power and stop the water supply
Turn the dishwasher off at its circuit breaker. If water is visible outside the appliance close the safely accessible supply valve.
Do not touch a wet plug socket power strip or exposed electrical area.
Evidence: LG USA dishwasher AE and E1 troubleshooting
Inspect only visible external conditions
Without moving the appliance check for water on the floor visible damage or buildup at the door gasket and an obviously obstructed spray arm.
Do not remove the kick plate or reach into the base pan. Internal drying and leak tracing are service work.
Evidence: LG USA dishwasher AE and E1 troubleshooting
Confirm the detergent used
Confirm that only dishwasher detergent was used and that the quantity matched the product instructions. Record any use of hand dishwashing liquid or multiple pods for the technician.
Do not restart the dishwasher while water remains outside or underneath it.
Evidence: LG USA dishwasher AE and E1 troubleshooting
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Virtual technician
Does AE still appear after these checks?
This guided flow uses the exact code and your answers to choose a test, an expected result and the next branch.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- LG
- Product type
- Dishwashers
Known code variants
- AE error LG dishwasher
- LG dishwasher AE
- LG dishwasher E1
What it means
LG documents leaks poor levelling seal or spray-arm conditions and excessive suds as possible branches. Internal base-pan and electrical work require service.
Warnings and stop conditions
- Criticalsource verified
Treat AE or E1 as a water and electricity risk. Disconnect power stop the water supply when leakage is visible and do not use the dishwasher again until the source has been resolved.
Evidence: LG USA dishwasher AE and E1 troubleshooting
Symptoms and causes
Probable causes · in order
- Water activated the float switchConfirmed
LG defines AE or E1 as detection of water inside the dishwasher base that activated the float switch.
Evidence: LG USA dishwasher AE and E1 troubleshooting
- Door seal or spray-arm conditionPossible
LG lists buildup or damage at the door gasket and blocked or damaged spray arms as possible paths for water to escape the normal wash area.
Evidence: LG USA dishwasher AE and E1 troubleshooting
- Wrong detergent or excessive sudsPossible
Using hand dishwashing liquid too much detergent or multiple pods can create foam that overflows into the base.
Evidence: LG USA dishwasher AE and E1 troubleshooting
- Dishwasher not levelPossible
LG includes incorrect levelling among the conditions to assess because water can pool toward one side of the tub.
Evidence: LG USA dishwasher AE and E1 troubleshooting
Sources and technical references
- 1
LG USA dishwasher AE and E1 troubleshooting
LG Electronics · 2024 · official_doc
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