LG Dishwasher Error Code FE

LG Dishwasher FE Error — What It Means and Why It Happens

The FE code on an LG dishwasher is typically a flood or water-detection error: the appliance has detected water in the base pan (beneath the tub) or another condition indicating a leak or overfill. When the internal float, moisture sensor or leak detector senses unexpected water, the machine will usually stop mid-cycle, lock out functions and display FE to prevent further flooding and electrical hazards. This error can be caused by physical leaks (failed hoses, loose clamps, cracked tub, worn door gasket), failed components (leak/float switch, drain pump or inlet valve), or less commonly an electronic problem that misreads the sensor.

Typical user impacts include stalled wash cycles, standing water inside the dishwasher or on the kitchen floor, interrupted drying and longer cycle times while the appliance attempts to recover. If ignored, FE-related issues can lead to water damage to cabinetry and flooring, mold growth, and in rare cases an electrical short if water reaches electronic components — so it should be diagnosed promptly.

Common Causes

• Water in the base pan (actual leak) triggering the float or moisture sensor
• Faulty or stuck float switch (mechanical or electronic)
• Leaking water inlet valve or supply hose
• Cracked or damaged tub or door gasket allowing water to escape
• Drain pump or hose leak, loose clamps or fitting failures
• Blocked filter or drain causing overflow/backup
• Faulty moisture/leak sensor board or wiring harness
• Control board misreading sensor input or false error due to electrical faults
• Improper installation or dishwasher not level, causing leaks at the door

Troubleshooting Steps

1. Power off and isolate: Turn off the dishwasher and unplug it, or switch off the circuit breaker. Shut off the water supply if you suspect an active leak. Safety first — do not work on a live appliance.
2. Check the floor: Pull the dishwasher forward (with care) and inspect the floor under the unit and the base pan for standing water. Use towels or a wet/dry vacuum to remove any water.
3. Dry the base pan and retest: If there is water in the base pan, dry it thoroughly. Some models will clear the FE after the water is removed and the float/sensor resets; power the unit back on and run a short diagnostic or rinse cycle to see if the code returns.
4. Inspect the float switch/sensor: Locate the float in the base pan or the moisture sensor and make sure it moves freely. If it’s stuck, clean and reseat it. For a definitive check, test continuity with a multimeter (power off) per the service manual.
5. Look for visible leaks: Inspect supply and drain hoses, hose clamps, the water inlet valve area, pump seals, and the tub for cracks. Tighten loose clamps and connections.
6. Examine the door seal and spray arms: Worn door gaskets or obstructed spray arms can direct water toward the door edge and cause leaks. Replace a brittle or compressed seal and ensure spray arms rotate freely.
7. Check filters and drain components: Remove and clean the filter and check the drain pump area for debris that might block drainage and cause overflow.
8. Test pump and inlet valve: With power off, inspect and, if comfortable, test the drain pump and water inlet valve for proper operation or leaking. Replace if defective.
9. Inspect wiring and control board: Look for water-related corrosion or damaged wiring around sensors and the control board. If electronics look water-damaged, stop and call a technician — replacing boards can be complex and risky.
10. Run a service diagnostic: Many LG dishwashers have a self-diagnosis mode. Consult your model’s manual to run tests that may reveal the sensor or circuit generating the FE code.
11. If FE persists, call a professional: If you cannot locate or fix the leak, or if the control/electronics appear damaged, contact LG support or an authorized service technician to avoid further damage.

Maintenance & Prevention Tips

• Inspect door gasket monthly for cracks or compression and replace it when worn.
• Check supply and drain hoses every 6–12 months for chafing, soft spots or loose clamps.
• Secure hose connections with new clamps if the originals are corroded or loose.
• Clean the filter, spray arms and sump regularly to prevent clogs and backups.
• Run a quick visual check under the dishwasher annually for early signs of moisture.
• Avoid overloading the dishwasher which can force water toward the door and seals.
• Use only manufacturer-recommended detergents and correct amounts to prevent oversudsing.
• Ensure the dishwasher is level — an unlevel unit can leak during heavy cycles.
• Consider a flood-safe anti-flood device or water shutoff for installations in vulnerable areas.
• Replace worn hoses proactively every 5–7 years rather than waiting for failure.
• Address minor leaks immediately — small drips can lead to base pan water over time.
• Run a maintenance cycle with a dishwasher cleaner periodically to reduce build-up.
• Check the inlet valve for drips after cycles; a slow drip can eventually create an FE condition.
• Don’t place heavy items on the dishwasher top that could shift and stress connections.
• If you notice unusual noises, vibrations, or repeated errors, schedule professional inspection.

FAQ

Conclusion / Safety Notice

FE errors indicate potential water intrusion and should be taken seriously. Always disconnect power before accessing the dishwasher’s interior or electronics. If the source of the water is obvious and a basic part (hose clamp, gasket) needs replacement, you may handle it if you’re comfortable with appliance repairs. However, if you find water-damaged wiring, a soaked control board, or cannot locate the leak, stop and contact a qualified appliance technician or LG-authorized service to avoid risk of electric shock, fire, or worsening water damage.

When in doubt, call a professional: water-related faults often escalate quickly and can cause expensive home repairs if not properly addressed. A trained technician can run diagnostic tests, replace faulty sensors or electronics, and ensure the unit is safe to return to service.