LG Dishwasher Error FE: Water Overflow (Clean the Float!)

What It Means

The FE error code stands for Fill Error. It means the dishwasher detects that the water level is too high. As a safety measure, the drain pump will turn on automatically and run continuously to prevent flooding, even if you try to turn the machine off.

Common Causes

1. Dirty Float Assembly: The float moves up and down with the water level. Over time, grease and food debris build up, causing it to get stuck in the “up” (full) position.
2. Excess Suds: If you used regular dish soap instead of dishwasher detergent, the suds can trick the sensor.
3. Failed Water Inlet Valve: If the dishwasher fills with water even when it’s turned off, the water inlet valve is stuck open mechanically.

How to Fix It

1. The “Reset” (Temporary Fix)

• Turn off the breaker to the dishwasher.
• Wait 10-15 minutes.
• Turn it back on. If the drain pump starts running immediately, the error is still active.

2. Clean the Float Assembly (The Real Fix)

• Safety First: Turn off the water supply and the circuit breaker.
• Uninstall: Remove the kickplate and the screws securing the dishwasher to the counter. Pull the machine out (you may need to disconnect the drain hose and water line if they are short).
• Locate the Float: On most LG models, the float assembly is on the left side of the sump (the bottom basin).
• Remove & Clean:
  • Disconnect the wire harness to the float switch.
  • Unclip the float assembly from the sump.
  • Take it to the sink and scrub it thoroughly. You’ll likely find a ring of grime preventing it from sliding down.
  • Ensure the float moves freely inside its housing.
• Reinstall: Snap it back in, reconnect the wires, and slide the dishwasher back.

3. Replace the Float Assembly

If cleaning doesn’t work, or if the switch itself is corroded, you’ll need to replace the assembly.