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LG Dishwasher Error Code AE: Leak detected error
Applies to LG dishwashers that show AE or E1 on the display.
A leak inside the appliance has lifted the base-pan float switch (shown as AE or E1). Turn the water off and find the source before running it again.
What this code means
LG dishwashers carry a float switch in the base pan. When leaked water lifts it, the machine cancels the cycle to protect your floor. The source is usually a hose fitting, a door gasket, or over-sudsing detergent rather than a major failure.
The manufacturer's checks, in order
- Switch the dishwasher off and close the water supply.
- Check the door seal, the drain hose connections and whether the unit sits level, as LG's guide lists.
- Dry the base pan once you find the source, then run a short cycle and watch for new moisture.
LG's manual directs owners to turn off the water supply and contact LG if the leak source is not obvious — do not keep cycling a leaking machine.
Parts involved in this fault
| Part | Why it is involved | Typical price | |
|---|---|---|---|
| Door seal / gasket | A perished or split seal is the most common leak path. | $20-$45 | Check priceaffiliate slot |
| Hose set | Supply and internal hoses perish and weep with age. | $15-$30 | Check priceaffiliate slot |
| Leak sensor / float switch | The sensor that detects the water — occasionally the sensor itself is the fault. | $15-$30 | Check priceaffiliate slot |
Related LG dishwasher codes
IE — Water inlet errorOE — Drain (water outlet) errorFE — Overfill errorHE — Heater errortE — Thermistor (temperature sensor) errorLE — Wash motor error
Questions people ask about AE
Is AE a leak on every LG appliance?
No. On LG dishwashers AE/E1 is a leak. On LG top-load washers AE is a drum rotation error. Same brand, same letters, different appliance, different fault.
Source & provenance. The meaning, the checks and their order, and the service line on this page are restated from LG official — “How Do You Fix Common Dishwasher Problems?” (LG Story) and “LG Dishwasher — Understanding Error Codes” (Help Library) (source), read on 2026-11-06. No forum content, no invented repair steps, and nothing involving gas, refrigerant or mains wiring. Where the manufacturer says to request service, this page stops too.