Lg Dishwasher Error Code: LE

LG Dishwasher LE Error Code Explained: Causes and Solutions

The appearance of the LE error code on your LG dishwasher is typically an indication of an issue with the direct driven circulation pump. This error is abbreviated as “LOCKED MOTOR ERROR,” which signifies that the dishwasher’s circulation pump has ceased to provide a feedback signal. There are a few potential reasons for this occurrence.

One common cause is the obstruction of the impeller by foreign items. If objects have blocked the impeller’s movement, it can lead to a disruption in the circulation pump’s functionality, triggering the LE fault code.

Another possible cause is a faulty circulation pump motor. If the motor responsible for driving the circulation pump is malfunctioning, it can result in the same error code being displayed.

Exploring the Causes Behind the LG Dishwasher LE Error Code

• When there’s an excessive amount of suds, it can impede the proper functioning of the circulation pump. This can ultimately trigger the LE fault code as the pump might struggle to operate efficiently.
• If items like broken glass, utensils, or food particles obstruct the impeller’s movement, it can hinder water circulation. This disruption in water flow can result in the LE error code as the dishwasher perceives a problem with the circulation pump.
• If the wiring harness becomes damaged, loose, or disconnected, it can disrupt the communication between the circulation pump motor and main board. This disruption can lead to the LE fault code, as the dishwasher fails to receive proper signals from the circulation pump.
• If the oil seal becomes compromised or the bearing deteriorates, it can result in increased friction and resistance within the pump’s mechanism. This added strain can trigger the LE error code, indicating that the pump’s motor is encountering difficulties.
• Some older dishwasher models have a built-in hall sensor within the circulation pump. This sensor monitors the motor’s rotational speed and position. If the hall sensor becomes faulty or malfunctions, it can disrupt the feedback signal the dishwasher receives from the pump. This disruption can lead to the LE fault code being displayed.
• If the motor becomes faulty or experiences issues, such as electrical problems or mechanical failures, it can result in the LE error code. The dishwasher’s inability to operate the pump properly prompts the display of this error.
• If the main board develops issues with sending or receiving signals, it can lead to miscommunication between components, including the circulation pump. This miscommunication can contribute to the appearance of the LE fault code.

Resolving LG Dishwasher LE Error Code: Effective Solutions to Restore Functionality

If you encounter the LE error code on your dishwasher, follow these troubleshooting steps to address the issue:

• Refer to your LG dishwasher user manual for guidance: Run a rinse cycle without dishes using no detergent to clear excess suds. Use only the recommended amount of detergent in future wash cycles.
• Check for any obstructions in the dishwasher’s tub, particularly around the impeller. Remove any debris or objects that may hinder its movement.
• Inspect the wiring harness for damage, loose connections, or disconnections. If necessary, repair or replace the wiring to ensure proper communication between the main board and pump motor.
• If you suspect issues with the oil seal, the most effective solution is to replace the sump assembly. When the oil seal is compromised, it can lead to lubrication issues within the bearing. On the other hand, if the bearing is the culprit, it’s recommended to replace the entire circulation pump. This is because the bearing is an integral part of the pump’s mechanism, and a faulty bearing can cause strain and inefficiency in the pump’s operation.
• For older dishwasher models equipped with a hall sensor, you can perform a resistance check to assess the sensor’s functionality. Measure the resistance between Vcc (+dc power supply voltage) and Ha, and ensure that it equals the resistance between Vcc and Hb. This test is designed to confirm that the hall sensor is providing consistent resistance values, indicating that it’s functioning as intended. Typically, the resistance between Vcc and Hb should be around ~ 10 KΩ, providing assurance of the sensor’s proper operation.
• In the case of a malfunctioning motor, you can perform a resistance check between the motor’s phases. Measure the resistance, and the value should ideally be around 20 ohms. This test helps determine whether the motor’s internal components are functioning within the expected range, indicating the motor’s health. If the resistance value significantly deviates from the expected range, it’s a sign that the motor may be faulty and should be replaced.
• If you’ve attempted the troubleshooting steps above and the LE error code still persists, it might be necessary to consider replacing the main board.