John K Lawrenceville , GA November 03, 2017 Appliance: Samsung Dryer DV400EWHDWR/AA-0000 Samsung Dryer Dv400ewhdwr/Aa-0000 / : Dryer would not start. How to replace Refrigerator Screw-Tapping. The start button had been tricky to use. You had to push it in just a certain way to get the dryer to start. Eventually it was non-responsive. All other controls worked and there was no error code displayed. The repair was to replace the whole control board which cost around $100. Heavy sigh.. Be sure to keep track of all your screws. BTW it was not the thermal fuse. All the online videos say this is the first thing to look for when the dryer will not start. Be sure to check with the person who uses the dryer the most about any button issues before taking anything apart. 9 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes