On a supported Samsung washer, SUD, 5UD, Sd or SUdS means the washer detected excessive detergent foam. Wait for the automatic foam-reduction routine to finish and do not add more detergent. Then run empty rinse cycles until visible suds disappear, then switch to the measured amount of HE detergent.
What this covers
- Samsung washers displaying SUD, 5UD, Sd or SUdS
What it does not cover
Try in this order
0 of 4 completedConfirm SUD, 5UD, Sd or SUdS on the exact model
ReversiblePhotograph the complete display, record the model tag and note the cycle stage. Similar-looking codes can mean different things on another product line.
Check the condition named by the code
ReversibleWait for the automatic foam-reduction routine to finish and do not add more detergent.
Correct the remaining user-serviceable cause
ReversibleRun empty rinse cycles until visible suds disappear, then switch to the measured amount of HE detergent.
Run one controlled verification
ReversibleWash a small normal load and confirm there is little visible foam and no repeat code. Service is appropriate if the code returns with an empty drum and no detergent residue.
Evidence ledger
Sources behind this answer
Exact questions
Common questions about “Samsung washer SUD, 5UD, Sd or SUdS code”
What does SUD, 5UD, Sd or SUdS mean on a Samsung washer?+
It means the washer detected excessive detergent foam.
Can I clear SUD, 5UD, Sd or SUdS by resetting the washer?+
A restart may clear a stored display only after the underlying condition is corrected. Repeatedly resetting without correcting the cause is not a repair.