Bart A Mission Hills , CA September 07, 2015 Appliance: LG Washer WM2101HW Lg Washer Wm2101hw / Abweeus: Would not turn on so no error codes the display would not light up & no sound. How to replace Main Pcb Power Control Board Assembly. The problem landed up being the filter assembly, it's the part that the electrical cord runs & I imagine converts the voltage to the washer, I don't know why it's called the filter assembly. But it worked. 18 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes