LG Washer Error Code Et

The Et code on an LG washer indicates an EEPROM input/output error detected during the PCB test mode. EEPROM is the memory chip on the main control board that stores the machine's operational settings and calibration data. When the board's self-test cannot successfully communicate with this chip, it displays a blinking 'Et' along with an alarm beep. This points to a hardware-level issue with the control board or its memory chip.

To exit the test mode when Et is displayed, you must press the power key since no other keystrokes are recognized. However, pressing power only deactivates the test mode and does not repair the underlying EEPROM fault. If the memory chip or control board has a hardware defect, the error will return when the test mode is run again. A reset alone is not a fix for this error.

Repair costs depend on whether the fix requires a full control board replacement or a more targeted repair. A replacement main control board for an LG washer typically ranges from around 100 to 300 dollars for the part alone, with professional labor adding another 75 to 150 dollars depending on your location. If the issue is limited to a bad solder joint and a technician can reflow it, the cost may be lower. Getting a diagnostic estimate before committing to parts is advisable.

DIY repair options are limited because the Et error points directly to the main control board's EEPROM memory. You can inspect the board for visible damage such as burnt components or corroded connections, but resolving a failed EEPROM chip or a damaged PCB typically requires component-level repair or full board replacement. If you are not comfortable working with electronics, a qualified appliance technician is the recommended path.

The Et error appears during the PCB test mode, and the washer is not in a normal operating state while this code is active. The keypad is locked except for the power button, so running a wash cycle is not possible while the error is displayed. It is best to power off the machine and avoid use until the control board issue is diagnosed and resolved.