Samsung Dishwasher Error Code 6E: Quick Solution
The 6E fault code appears when the dishwasher behaves as if a touch button has been pressed for longer than 30 seconds. Cut off electricity supply to the dishwasher by flipping the circuit breaker. Heat up the touchpad with a hair dryer. Run your finger across the buttons to see if there is one that tends to stick. Power your dishwasher and see if the error appears again. If it does, have the touch control panel replaced.
This may happen due to a defect in the sub PDA in the control panel or main PBA. Also, a functional error can occur. You can try resetting your unit: turn it off, wait a few minutes and turn it back on. If the error is still there, contact an authorized Samsung center and use professional help.