Michael M Morgantown , WV November 30, 2017 Appliance: LG Washer WM3470HVA Lg Washer Wm3470hva / : Would not power back up after running a wash cycle. How to replace Control Board. Replaced the Pcb assembly. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes