LG Washer Error Code 8E2

The 8E2 code on an LG washer signals a fault with the rear MEMS sensor PBA, which is a small circuit board that monitors drum motion and balance. The error can be caused by a faulty MEMS board, a malfunction of the silver nano component on that board, or a wiring connection problem between the MEMS PBA and the main control board. The washer will typically stop operating until the fault is resolved.

No, you should not continue using the washer while the 8E2 code is active. The MEMS sensor board monitors drum balance and motion, and operating the machine without this function working correctly could allow the drum to run in an uncontrolled or unbalanced state. It is best to leave the washer off until the fault is diagnosed and repaired.

A reset may temporarily clear the 8E2 code, but it will return if the underlying hardware fault is not corrected. Because this error is tied to a physical component failure or a wiring problem, a power cycle alone will not fix it. The MEMS PBA wiring, the board itself, and the main PBA connections need to be inspected and repaired to permanently resolve the code.

A knowledgeable DIYer can start by checking that all wire harness connectors between the MEMS PBA and the main PBA are firmly seated and free of corrosion. If connections look good, the MEMS PBA itself will need to be replaced, which requires accessing the rear of the washer and working with the wiring harness. If you are not comfortable working around electronic components and circuit boards, a qualified appliance technician is recommended.

Repair costs depend on which component is at fault. If only the wire harness connections need to be reseated, there may be little to no parts cost, though a service call fee typically applies. Replacing the MEMS PBA generally involves parts costs in the range of $50 to $150, plus labor. If the main PBA also needs replacement, total repair costs can rise to $200 to $400 or more depending on the model and service rates in your area.