Eric S Townsend , DE December 12, 2016 Appliance: Samsung Dryer DV45H6300EG/A3-0000 Samsung Dryer Dv45h6300eg/A3-0000: Dryer would start and run for about 5 seconds. How to replace Dryer Door Switch. Replaced the motor and it works fine again. The dryer would start normally but shut off shortly after starting. It would try to run again on its own after about 2-3 minutes and then would sound the finished alarm. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes