Samsung Dryer 3C error. Dryer won’t turn off : r appliancerepair - Reddit hello my name is ken im a full time appliance repair man do you know the model number of the dryer? it should say around the door when you open it now on regards to the 3c the control board for the dryer will need to be replace to fix the issue but I will need the model number to give you the right board number sincerly, ken