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

 
Explanation of the tE Error Code
 

The tE error code displayed on an LG dishwasher is a specific indicator used by the appliance’s internal diagnostic system to signal an abnormal reading from the temperature monitoring component. The error code is designed to alert users and service personnel that the sensor responsible for measuring the water or internal temperature is reporting values that do not align with the expected operational range.

• Indicator of Sensor Anomalies – The tE error code signifies that there is an inconsistency or fault in the data received from the temperature sensor, sometimes referred to as a thermistor. This sensor plays a critical role in ensuring that the dishwasher maintains the proper temperature during different stages of its cycle.
• Protection Mechanism – This error condition is implemented as a safety feature. When the sensor’s readings deviate from the norm, the control system triggers the error to prevent potential damage or unsafe operating conditions, thereby protecting both the appliance and its surroundings.
• Diagnostic Information – The code serves as an important diagnostic cue. It points to the fact that the temperature measurement process is not functioning as designed, which is crucial for diagnosing issues related to the dishwasher’s performance and internal monitoring system.

When the tE error code is activated, it emphasizes that the system has detected a temperature-related irregularity that requires attention. The error itself does not provide comprehensive details about the underlying cause or the necessary corrective action, but it does indicate that the issue is specifically tied to the sensor reading and monitoring circuitry associated with temperature measurement.

 
Electrical and Power Supply Issues
 

• Fluctuations in the incoming power supply may interfere with the control board’s ability to correctly process signals from the system.
• Transient voltage spikes or inconsistent power delivery can trigger error codes due to abnormal sensor readings.
• Faulty internal wiring connections can cause intermittent electrical contact, leading to irregular signal transmission.

 
Sensor Circuit Malfunctions
 

• The sensor circuitry responsible for monitoring internal conditions may become compromised due to deterioration or internal fault.
• Loose or corroded sensor connectors can result in sporadic signal loss or misinterpretation by the system.
• Damage or degradation in the temperature probe wiring can lead to unexpected error triggers.

 
Control Board and Communication Errors
 

• Issues on the main control board, including intermittent failure of integrated circuits, can disrupt communication with sensors.
• Corrosion or damage to the printed circuit board traces may cause misinterpretation of sensor data.
• Interference between different electronic modules on the board can result in aberrant readings.

 
Environmental Influences and Component Wear
 

• Extended exposure to moisture, cleaning chemicals, or build-up from operational use can impair sensor contacts or circuitry.
• Over time, thermal cycling and general wear might cause component degradation in sensors and connectors.
• Contaminants or residues within the dishwasher’s internal systems can affect the performance of electrical components.