Samsung Washing Machine Sud error code

The washer detected too many suds — usually from too much detergent or non-HE detergent. It pauses to run a foam-removal routine, then continues the cycle normally once the foam clears.

Also shown as: Sd, SUdS, SUD, Suds

Last updated: September 30, 2026

Quick answer: Samsung washing machine error code Sud: too many suds — usually excess or non-HE detergent. The most common cause is too much detergent for the load size. Try this first — let the washer finish on its own. If that does not clear it, run an extra Rinse/Spin cycle.

What causes the Sud error?

  • Too much detergent for the load size
  • Non-HE (non-high-efficiency) detergent in an HE washer
  • Detergent residue buildup from previous overdosed loads
  • Soft water amplifying normal detergent amounts

How to fix Samsung Sud — step by step

Work through these in order, from simplest and safest first. Stop as soon as the code clears.

  1. Let the washer finish on its own
    Sud is often a normal protective pause, not a breakdown. The washer runs a foam-removal routine and shows 'End' when it's done, then the cycle proceeds.
  2. Run an extra Rinse/Spin cycle
    If suds remain after the cycle, run a Rinse and Spin cycle with no detergent to flush the leftover foam out of the tub.
  3. Use less, HE-only detergent
    Switch to a high-efficiency (HE) detergent and use the amount recommended for your load size and soil level — softer water needs even less. This prevents the code from recurring.
  4. Run an empty cleaning cycle
    If suds appear even without detergent, run empty cycles until no foam shows up — this clears residue baked into the tub from past overdosing.

When to call a technician

Stop and call a qualified technician if any of these apply:
  • Sud never clears across multiple cycles even with correct detergent
  • Foam overflowing heavily out of the door or dispenser with water leaking
  • Suspected faulty suds/pressure sensor after detergent use is corrected
  • Burning smell or any electrical concern

Frequently asked questions

Is Sud an error or normal?

Usually normal — it's the washer protecting itself from excess foam. It clears the suds and continues. Only worry if it keeps happening with correct detergent.

Why does Sud appear when I used the normal amount of detergent?

Residue from previous overdosed loads can keep foaming. Run empty cycles until no suds appear, and make sure the detergent is HE-rated.

What does 'End' mean after Sud?

'End' means the foam-removal routine finished and the washer is resuming or finishing the normal cycle.

Sources

Every meaning and fix above was checked against official manufacturer documentation:

FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.

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