LG Dishwasher Error Code E1 — Water Leak in Base Pan
What this means
The E1 error code is similar to the AE code and indicates that the leak detection float switch in the base pan has been triggered. Water has accumulated below the dishwasher tub. Causes include loose or damaged hose connections, a leaking pump seal, a cracked sump, or a deteriorated door gasket.
Step-by-step fix
4 stepsTurn off water and power
Turn off the water supply valve and unplug the dishwasher. Place towels around the base to catch any water that may leak out when moving the machine.
Remove the kickplate and inspect
Remove the lower front kickplate (usually held by 2 screws). Use a flashlight to look under the dishwasher for the source of the water. Check all visible hose connections, the inlet valve, and the pump area.
Look for mineral trails or water stains that can help trace the leak back to its source.
Tighten or replace leaking components
If you find a loose hose clamp, tighten it. If a hose is cracked, replace it. If the door gasket is damaged, replace it. After fixing the leak source, dry the base pan thoroughly.
Reset and test
Once the base pan is completely dry, reconnect power and water. Run a cycle and monitor for leaks. The E1 error should clear once the float switch is no longer in contact with water.
When to call a professional
If the leak source is difficult to locate or involves the main pump seal or tub, a technician with access to move and tilt the dishwasher safely is recommended.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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