Samsung Washer Error Code DDC

The DDC code on a Samsung washer means the add door, the secondary loading door on dual-door models, is detected as open or the add door switch is reporting a fault. The washer stops operation to prevent water from escaping. This can be triggered by an unlatched door, a damaged switch, a loose wire harness, or in some cases a main PCB fault. High-temperature Boil wash cycles are a known contributor to switch stress that can produce this code.

No, you should not run the washer while the DDC code is active. The code exists specifically to stop operation when the add door is open or unsecured, since running the machine in that state could cause water to leak from the door. Resolve the door or switch issue before resuming normal use.

Repair costs vary depending on the root cause. If the fix is simply closing the add door or reseating a loose connector, there is no parts cost involved. Replacing the add door switch typically costs somewhere in the range of $20 to $60 for the part, plus labor if a technician is used. A main PCB replacement is more expensive, generally falling in the $150 to $350 range for the part alone, making professional diagnosis worthwhile before committing to that repair.

Start by firmly closing the add door until it clicks, then press START/PAUSE to resume the cycle. If the code returns, inspect the wire harness connectors at the add door switch and the main PBA to make sure all connections are secure and undamaged. If the harness looks fine, the add door switch itself may be deformed or failed and will need to be tested for continuity and potentially replaced. A persistent DDC code after those checks may point to a main PCB fault requiring professional diagnosis.

A power reset, such as unplugging the washer for a minute and restarting it, may temporarily clear the code, but it will return if the underlying cause is not addressed. If the door is simply unlatched, closing it properly and pressing START/PAUSE is the correct reset method. A switch, harness, or PCB fault will continue to trigger DDC until the faulty component is repaired or replaced.