Error code
dC1
Meaning
The dishwasher door is not fully closed
Informational
What to do
Why this happens
Possible causes include an improperly closed or unlatched door, a defective door lock switch, or the door opening during mid-cycle.
How to fix it
Close the door firmly — if it still will not latch, the door latch mechanism may need replacement
SourceSamsung service manual