We add more information as we learn so if you can't find what you need please ask in the Repair forums. For example, I don't know if I need a door lock or a PC board. If you're attempting to start the dryer with the door open, close the door. A little support in the mean time would be very appreciated. Don't forget to bookmark using Ctrl + D (PC) or Command + D (macos). When the dC code flashes on the Samsung washer display, some technical difficulties can arise: 1. a user can’t close the hatch; 2. if the unit issues the dC error at the end of washing, the door can’t be unlocked; 3. the washing machine closes but the lock doesn’t work.Depending on the washing machine’s behavior, the problem can be both insignificant and difficult. Hi my name it Tim and I have a dryer that is a little more than a year old. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. This website uses cookies to improve your experience while you navigate through the website. Learn how you can fix it. That way, we make sure you're buying the right replacement part and making the right repair. Hey, let me know if this link was helpful: http://www.samsung.com/us/support/troubleshooting/TSG01002001/#washer-displays-an-error-code, This last week on my Samsung washer this code came up on the upper washer side 1dc4 if I could get some help. Please do take care to read the information thoroughly as it is there to help you understand fault codes and to keep you safe. The last one requires professional repair.