Fault Code Lights Highlighted above Delicate and Quick: Dishwasher thinks that the door is open.
Fault: Dishwasher thinks that the door is open.
Samsung dishwasher displaying an error code? Newer style Samsung dishwashers have built in diagnostic systems. If your dishwasher finds, sees, or detects a fault or error in the system, it will show an error or fault code. The error code will display where the usual numbers are on the display screen. When an error code is displayed, your dishwasher is telling you a specific fault.