William B Bedford , IN September 16, 2015 Appliance: General Electric General Electric GTDP490ED0WS Ge Dryer Gtdp490ed0ws / : Ge dryer would not stay running it would only run with the start switch held down. How to replace Interlock Switch. Replaced the belt interlock switch. It was a very easy repair to make as I followed the helpful videos online. Each step was clearly described and everything progressed just as shown in the video. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes