LG Dishwasher IE Error Code — What It Means and How to Fix It
The LG dishwasher IE error code (sometimes displayed as “I E” or “IE”) indicates a water inlet fault — the appliance is not detecting proper water fill during the start or fill phase. This error can appear when the dishwasher receives no water, too little water, or when an internal sensor or valve is failing to register a normal fill. Common user impacts include a machine that won’t start or completes cycles, incomplete cleaning, longer or repeated cycles as the dishwasher retries to fill, standing dishes in unsanitary conditions, and in some cases, water damage or leaks if the supply line or valve is compromised. Ignoring an IE error can also lead to increased wear on pumps and heating elements and reduced appliance lifespan.
Common Causes of the IE Error
- Household water supply turned off or shutoff valve closed.
- Low water pressure from the building supply (insufficient fill).
- Kinked or pinched inlet hose restricting flow.
- Clogged inlet filter/strainer (debris, mineral buildup).
- Faulty water inlet valve (solenoid not opening or electrically failing).
- Stuck or obstructed float switch or float assembly preventing proper level detection.
- Faulty water level sensor, flow meter, or pressure sensor.
- Loose or corroded electrical connections to inlet valve or sensors.
- Malfunctioning main control board that misinterprets the sensor or valve signals.
- Frozen or burst external supply lines in cold climates.
Troubleshooting Steps for LG Dishwasher IE Error
- Confirm water supply: make sure the household water supply to the dishwasher is turned on and the shutoff valve (under the sink or at the wall) is fully open.
- Check water pressure: run a nearby faucet to verify good hot water pressure. Low household pressure can trigger IE.
- Inspect the inlet hose: unplug power, then pull the dishwasher out to check for kinks, bends, or visible damage in the supply hose. Replace if damaged.
- Clean the inlet screen/strainer: shut off water, disconnect the inlet hose, and clean the small mesh screen on the valve inlet to remove mineral deposits or debris that restrict flow.
- Verify the float assembly: open the dishwasher door and locate the float (usually a small dome or cylinder in the tub floor). Make sure it moves freely and is not obstructed by debris.
- Test the inlet valve electrically: with power off, use a multimeter to check continuity of the water inlet solenoid. No continuity usually means the valve needs replacement.
- Check electrical connections: inspect wiring connectors to the inlet valve, float switch, and control board for loose terminals or corrosion; reseat connectors.
- Power cycle the dishwasher: sometimes a reset clears temporary faults. Turn off power at the breaker for 1–2 minutes, then restore power and attempt a cycle.
- Obse