Error Code AE

Leakage Error — water detected in base pan (float/safety switch triggered)

Also displayed as: AE

What This Means

Door gasket loose or fallen off; Float assembly stuck; Seal assembly not correctly seated on sump; Unit not leveled; Wrong detergent causing excessive suds; Door opened during cycle; Excessive water in tub (inlet valve or air guide fault); Main PCB fault

How to Fix

1. 1

   Step 1: Tilt the machine and drain water from the base pan.

2. 2

   Step 2: Inspect the base — check sealing of drain hose, pump casing assembly, and vario motor for source of leakage.

3. 3

   Step 3: Check and level the machine using a digital level (should be perfectly level side-to-side and front-to-back).

4. 4

   Step 4: Verify installation bracket is properly installed per installation instructions.

5. 5

   Step 5: Check door gasket — if loose or missing, replace door liner assembly.

6. 6

   Step 6: Check float (safety switch) assembly — if stuck in triggered position, replace safety switch assembly.

7. 7

   Step 7: Confirm customer is using dishwasher-rated detergent (not hand dishwashing liquid).

8. 8

   Step 8: Verify the seal assembly is properly seated and clamped to the sump.

9. 9

   Step 9: Check whether there is too much water in the tub after normal fill — if yes, replace inlet valve or air guide.

10. 10

    Step 10: If no cause found, replace main PCB assembly.

11. 11

    Note: For AE errors, document in the repair report: level check result, detergent type, whether door was opened during cycle, cycle frequency, inlet water temperature, and number of cycles run since error appeared.

This Error Applies To

LG LDF5545SS Series Dishwashers (2017) (2017–present)