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Samsung washer SUD, 5UD, Sd or SUdS code: the washer detected excessive detergent foam

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.

Direct answer

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
  • The code and product type exactly match the official source
  • Customer-accessible checks before component replacement

What it does not cover

  • ×A similar code on another manufacturer or appliance type
  • ×Codes omitted from the exact model manual
  • ×Internal wiring, sealed-panel or live-electrical repair
Try in this order0 of 4 completed

  1. Confirm SUD, 5UD, Sd or SUdS on the exact model

    Reversible

    Photograph the complete display, record the model tag and note the cycle stage. Similar-looking codes can mean different things on another product line.

  2. Check the condition named by the code

    Reversible

    Wait for the automatic foam-reduction routine to finish and do not add more detergent.

  3. Correct the remaining user-serviceable cause

    Reversible

    Run empty rinse cycles until visible suds disappear, then switch to the measured amount of HE detergent.

  4. Run one controlled verification

    Reversible

    Wash 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

Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.

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Samsung SupportSamsung washing machine information and error codes

Official meanings and customer-safe checks for Samsung washer codes and blinking-light patterns.

Exact questions

Common follow-ups

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.

When is professional service appropriate?+

Service is appropriate if the code returns with an empty drum and no detergent residue.

Change recordAug. 17, 2026 — Published the exact SUD, 5UD, Sd or SUdS meaning, customer-safe checks and service boundary from Samsung Support.
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