ErrorCodePro · Appliance Error CodesLG Dishwasher (service chart) Error Code AE: Meaning & How to Fix It
By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026
LG dishwasher (service chart) error code AE means: Water leak detected. The meter should measure infinite resistance when the cabinet base is dry. The meter should read the same resistance as for the flood switch. [1] Keep using it? No. Stop using it until the cause is fixed. Start with the owner checks below, beginning with: write down the code and model number.
Source: LG dishwasher error-code chart, via Sears PartsDirect [1].
Quick facts
| Code | AE |
|---|---|
| Also shown as | E1 |
| Brand / appliance | LG dishwasher (service chart) |
| System | Leak protection |
| Meaning (service chart) | Water leak detected. The meter should measure infinite resistance when the cabinet base is dry. The meter should read the same resistance as for the flood switch. [1] |
| Keep using it? | No. Stop using it until the cause is fixed |
| DIY-safe? | Owner checks only (listed below) |
| Support | LG USA Support (lg.com/us/support) |
| Source document | LG dishwasher error-code chart (via Sears PartsDirect) |
On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ
What error code AE means on an LG dishwasher (service chart)
Water leak detected. The meter should measure infinite resistance when the cabinet base is dry. The meter should read the same resistance as for the flood switch. [1]
This is a leak protection code. Codes and wording can vary by model, so check your owner's manual for your model number.
How to fix LG dishwasher (service chart) error code AE (safe owner checks)
- Write down the code and model number. Note exactly what the display shows (AE) and copy the full model number from the rating label, so you can confirm this chart applies to your dishwasher (service chart) and order the right parts.
- Open the water supply. Unplug the dishwasher and shut off the water supply.
- Check the dishwasher cabinet base. Check the dishwasher cabinet base for water.
- Check the drain hose. Check the configuration of the drain hose because water can siphon out of the dishwasher if the drain hose isn't installed properly. Follow the directions in the installation guide to properly install the drain hose.
- Test and decide. Run a short cycle or restart and watch the display. If AE comes back after these checks, stop using the dishwasher for this function and call a technician, because the remaining causes need meters or part replacement.
The first and last steps (and the power reset) are general owner checks added by ErrorCodePro; the rest follow the LG dishwasher error-code chart published by Sears PartsDirect, rewritten for safe owner use.
Parts that may be involved
Exact parts depend on your model number. This page lists part types only, never part numbers.
- Flood switch
When to call a technician
- If the code appears and no water leaked into the cabinet base, disconnect the flood switch wires and check the resistance through the flood switch using a multimeter.
- If the meter measures near 0 ohms, a technician should replace the flood switch because the switch tripped with the cabinet base dry.
- If the meter measures infinite resistance, reconnect the flood switch wires and check resistance through the flood switch wires that connect to the electronic control board (sky blue and yellow wires on NA8).
- If the meter measures near 0 ohms, find and repair the damaged flood switch wires that are shorting together.
- If the meter measures infinite resistance, then the AE or E1 code was likely caused by high circulation pump speed due to low water level.
- Anything involving wiring, the control board, the motor or the water valve electrics
- The appliance is under warranty: contact LG USA Support (lg.com/us/support) first
Related error codes
Frequently asked questions
What does error code AE mean on an LG dishwasher (service chart)?
The LG dishwasher error-code chart lists AE as follows: Water leak detected. The meter should measure infinite resistance when the cabinet base is dry. The meter should read the same resistance as for the flood switch.
Is it safe to keep using the dishwasher (service chart) with AE?
No. Stop using it until the cause is fixed.
Can I fix LG dishwasher (service chart) error AE myself?
Only with the owner checks on this page, starting with: write down the code and model number. If it persists, call a technician or LG USA Support (lg.com/us/support).
Is E1 the same as AE?
Yes. The source chart lists E1 with the same meaning as AE; the display format depends on the model.
Sources
- Sears PartsDirect: LG dishwasher error-code chart (third-party copy of manufacturer service data)
Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with LG.