Christine M Waterloo , IL May 26, 2015 Appliance: Kenmore Washing Machine 79629002000 Kenmore Washer 79629002000: The washer stopped working at the end of a completed cycle with the clothes locked inside the control panel went completely blank. How to replace Control Board. We ordered a new main PCB assembly. Then we removed the existing PCB assembly and installed the new one. 21 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes