Eric G Powell , TN December 19, 2020 Appliance: Samsung Dryer DV45K6500EV/A3-00 Samsung Dryer Dv45k6500ev/A3-00: Dryer would run all the time. I had to unplug it!. How to replace Assy Holder Pcb;Dv7500k,Dv50k7500ev,Y,Sm. Replaced the main control board. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes