LG Washer Error Code AE

LG Washer Error Code: AE — What It Means

The AE error on an LG washer (sometimes shown as “AE” or “Ae”) indicates an automatic error related to the washer’s water-level detection or leak/flood sensing systems. In plain terms, the machine has detected an abnormal condition involving water — for example, an unexpected high water level, a mismatch between actual water level and the expected reading, or moisture in the machine base. When this happens the washer will typically stop the current cycle and display the AE code to protect the appliance and your home.

Why it occurs: the washer uses a combination of a pressure (water-level) sensor, inlet valves, hoses, a drain path and internal moisture/flood sensors to manage water. If one of those components is blocked, kinked, malfunctioning or shorted — or if wiring or the control board miscommunicates — the machine can think there is a dangerous water condition and trigger AE. Common user impacts include interrupted cycles, inability to spin or drain, excess water in the drum, longer overall cycle times because the unit is attempting retries, and in severe cases risk of leakage or water damage to floors.

Common Causes

• Faulty or clogged pressure (water-level) hose between the tub and the pressure sensor
• Defective pressure sensor / water-level switch
• Malfunctioning water inlet valve causing overfill or erratic filling
• Drain pump blockage or failure that prevents correct water-level sensing
• Water in the base (flood sensor triggered by a leak)
• Wiring issues or loose connectors to sensors or the main control board
• Faulty main control board (PCB) or software glitch
• Kinked or collapsed supply or drain hoses causing irregular pressures
• Incorrect installation (improper leveling or venting) causing abnormal behavior

Troubleshooting Steps

1. Power cycle the washer: unplug for 5 minutes or switch off the breaker, then plug back in and run a short test cycle — transient faults sometimes clear.
2. Check for visible leaks or water in the base: pull the washer away from the wall and inspect the floor and underside for moisture; wipe and allow to dry. If the flood sensor was triggered, the machine may need professional drying and inspection.
3. Verify inlet and drain hoses: ensure supply hoses are fully connected and not kinked; check the drain hose for clogs or incorrect installation height.
4. Inspect and clean inlet filters/screens: turn off water, disconnect hoses and clear debris from the inlet screens that can cause erratic flow.
5. Examine the pressure hose: locate the small rubber hose that runs from the tub to the pressure sensor; remove and inspect it for clogs, pinches, or detachment and replace if cracked.
6. Test the drain pump: clear foreign objects and lint from the pump and filter; verify pump runs when commanded. A blocked or failed pump can trip AE logic.
7. Check wiring and connectors: look for loose, corroded or damaged connectors at the pressure sensor, flood sensor and control board; reseat or replace as needed.
8. Run a diagnostics mode (if supported): many LG washers have a diagnostic/test mode to read sensor values — consult your model’s service manual for entry steps.
9. Replace suspect components one at a time: if troubleshooting points to a bad pressure sensor, pressure hose or inlet valve, replace that component and re-test before moving on.
10. If AE persists after basic troubleshooting, stop using the machine and call a qualified appliance technician — repeated water-related errors can risk flooding or electrical damage.

Maintenance / Prevention Tips

• Keep the washer level on a stable surface — uneven machines can cause sensor misreads.
• Inspect supply hoses and clamps every 6–12 months for kinks, wear or leaks and replace older hoses (rubber hoses every 5 years; braided stainless sooner if damaged).
• Clean water inlet filters/screens periodically to ensure steady, even fill rates.
• Clear the drain pump filter of debris on a regular schedule (monthly if you wash many items with buttons/zippers).
• Don’t overload the washer — heavy, uneven loads can cause imbalanced water distribution and sensor confusion.
• Avoid pouring fabric softener or liquid detergent directly into the drum where it can enter sensors — use designated compartments.
• Check and replace any cracked or brittle pressure hoses that connect the tub to the pressure sensor.
• Keep the area under and around the washer dry — spills or condensation that reaches sensors can trigger AE.
• Use quality water supply hoses and install a water shut-off valve or a leak-detection device when possible.
• Allow the washer to complete cycles without repeatedly interrupting mid-cycle to avoid confusing the control board.
• Run a monthly maintenance cycle with no laundry using a washer cleaner to reduce build-up.
• Securely fasten all connectors after service or moving the unit to prevent loose wiring faults.
• Replace aging electronic control boards proactively if you notice repeated unexplained errors.
• Make sure the drain standpipe height meets manufacturer recommendations to prevent siphoning/backflow.
• When installing, ensure proper ventilation and clearance so hoses and wires are not pinched or stressed.
• Have a technician test pressure sensor calibration during regular service visits.
• Keep an owner’s manual or service manual handy for model-specific diagnostics and error code meanings.
• Use recommended detergents and measured amounts to avoid excessive suds that can confuse sensors.
• Immediately address any odd noises or vibrations — these can be early signs of problems that later produce AE.

FAQ

Conclusion / Safety Notice

AE errors often signal water-safety issues. Because water and electricity are involved, avoid operating the washer if you suspect a leak, see standing water, or if error codes persist after basic resets. Small fixes like clearing clogs or replacing a hose are straightforward, but diagnosing sensors and electronics can be complex.

If troubleshooting steps do not clear the AE error, or if you find water in the machine base or damaged wiring, stop use and contact an authorized LG service provider or licensed appliance technician. For your safety and to prevent property damage, call a professional when in doubt.

Need help finding replacement parts or locating an authorized LG technician? Consult your owner’s manual or LG support for model-specific guidance and certified service options.