Paul T Portland , OR August 18, 2014 Appliance: LG Washer WM2277HS Lg Washer Wm2277hs / Atteeus: Washer not powering on. How to replace Main Printed Circuit Board. Through my research it could've been the control board or main board. If you know what item on the board to test with a meter you can then determine which board to replace. I did not have that option and took a chance and replaced the main board and it turned out I was right. The plastic cover that covers the main board had a sticker on it with a serial number. Pay no attention to this sticker because when I pulled out my main board itself it had a different serial number on the board and I used that one to order the replacement.Repair was fast and washer powered up fine. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes