Leslie S Mesa , AZ February 06, 2015 Appliance: LG Washer WM0642HW Lg Washer Wm0642hw / Abweeus: Worn bearings and once replaced a le error code after several washes. How to replace Washer Rotor Position Sensor Assembly. Replaced the bearings as shown in the very helpful video. My washer was different from the one in the video but the basics were the same. The bearings were completely destroyed to the point they just fell in pieces and the hardest part was removing the remainder of the bearings. Everything went back together smoothly and the washer ran like new for a few cycles until the fault code. Back to AppliancePartsPros.com I go for help and the answer was there. I replaced the Rotor Position Sensor Switch in about 45 minutes and the washer is performing like new again. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes