LG Dishwasher AE Error Code Explained: Meaning, Causes & Fixes

 
AE Error Code Meaning in LG Dishwashers
 
The AE error code is a diagnostic alert used by LG dishwashers to indicate that the appliance’s built-in water detection system has registered an anomaly in the water management process. This error serves as an internal signal that the system has encountered a condition related to water presence where it should not occur. In essence, when the dishwasher displays the AE error, it is telling you that an internal sensor has detected water in a location that is normally kept dry during normal operation. This sensor-based alert is part of LG’s overall safety strategy designed to protect both the appliance and the surrounding area from potential water damage.

• Built-In Safety Feature: The AE error is generated by sensors that continuously monitor the water level and its location within the dishwasher, ensuring that water is confined to the correct areas during a wash cycle.
• Internal Monitoring System: The error code indicates that the control system has processed an abnormal reading which deviates from the expected water distribution or containment patterns.
• Alert for Preventive Action: By displaying the AE error, the appliance is effectively alerting the user or a service technician to a condition that requires attention, serving as a preventive measure against possible water damage.

 
Understanding the Role of the AE Error Code
 
This error code is part of a sophisticated self-diagnostic mechanism incorporated within LG dishwashers. It is not merely an arbitrary fault indicator but a targeted warning that hardware monitoring systems have detected a water presence in a controlled area where water is normally absent. Such a detection prompts the dishwasher’s logic board to suspend regular operation to minimize any risk that may stem from unintended water leakage within the unit. The AE error code, therefore, is an important message from the appliance’s internal safeguards, ensuring that any unusual water behavior is promptly flagged for further professional review.

 
Potential Internal Water Leakage
 

• The AE error code can be triggered when water is detected in areas it should not be, indicating an internal leakage. Faults in seals, gaskets, or the tub lining might allow water to seep into the base, where it activates the sensor.
• Over time, deterioration in the rubber seals or improper installation can cause water to escape during the washing cycle, which may erroneously be interpreted as a leak by the sensor system.

 
Issues with the Leak Detection Sensor
 

• Electrical or mechanical failures within the sensor itself can cause false alarms. A malfunctioning sensor might register moisture even when there is no active leak.
• Wiring issues, such as corroded or loose connections related to the sensor, can produce irregular signals resulting in the AE error code.

 
Faults in the Water Inlet or Drain System
 

• An issue with the water inlet valve not closing properly can allow an unusual influx of water, potentially leading to internal pooling.
• A problem within the drainage system, such as partial blockages or pump malfunctions, might prevent proper water removal. This causes water to accumulate in unintended areas, triggering the leak sensor.

 
Installation and Positioning Concerns
 

• An incorrectly leveled dishwasher or improper installation can cause water to settle in the base. This pooling may be detected by the sensor as a leak.
• When the appliance is not properly aligned, vibrations during operation might exacerbate water movement, leading to unexpected contact with the sensor.

 
Residual Water from Incomplete Drying Cycles
 

• Occasionally, water might remain trapped within the dishwasher’s internal compartments after a cycle ends. If this residual water finds its way to the base sensor, it can trigger the error code.
• This scenario may be linked to a slight malfunction in the drying mechanism, where insufficient evaporation allows water to accumulate.