John L Aloha , OR October 26, 2014 Appliance: Whirlpool Dryer GEW9200LW0 Whirlpool Dryer Gew9200lw0: The control board. How to replace Control Board. I took the top off and I wasn't sure what the problem was so I went to your site to troubleshoot. It was not obvious what was wrong, and I wound up ordering the interface and that wasn't it. So I went back and got the control board and that was the problem. I have a return authorization for the interface, so I am confident that I am just about 100% happy. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes