SUD

Excessive Suds Detected

Home Appliance Error Codes Samsung Washing machines

Severity Low It can wait a little, but get it checked soon.
Can you still use it? Yes, normally
Who can fix it? You can fix it yourself
Typical repair time 15 minutes – 1.5 hours
Typical cost SAR 50 to 500

What it means

This code appears on Samsung front-load and top-load washing machines when the washer detects heavy suds that interfere with washing or draining; the display shows it as Sud or, on some models, SdS. It is not a fault in itself: the washer pauses or adds drain and rinse steps to break down the suds, then usually continues. The same code can mean something else on other brands.

Models covered: Samsung front-load and top-load washing machines; newer models show codes ending in C (e.g. 4C), older ones end in E (e.g. 4E) with the same meaning.

Symptoms4

  • The code appears during the wash or before spin, and the cycle runs longer.
  • Thick suds visible through the front-loader door or in the tub.
  • Suds may come out of the detergent drawer.
  • Detergent residue on clothes after the cycle.

Possible causes5

  • Detergent not made for automatic washers, such as hand-wash powder.
  • Too much detergent, especially with soft water or small loads.
  • Heavy detergent residue in clothes from a previous wash.
  • Slow draining from a blocked pump filter or hose.
  • Water level sensor fault giving a false suds reading (rare).

How to diagnose5

  1. Check the detergent type; it must be made for automatic washing machines.
  2. Compare the amount used with the pack instructions and the load size.
  3. Let the washer finish its suds-reduction steps, and do not open the door with water in the drum.
  4. Unplug the washer and clean the drain pump filter with a towel and shallow tray, taking care with hot water after hot programs.
  5. If the code repeats with the right detergent and amount, a technician unplugs the washer before opening it and checks the drain path and water level sensor.

How to fix6

  1. Use detergent made for automatic washers and reduce the amount.
  2. Run an extra rinse and spin without detergent to clear remaining suds.
  3. Clean the drain pump filter and check the drain hose.
  4. Run the tub clean program if available to remove built-up detergent.
  5. The technician replaces the water level sensor or clears an internal drain blockage if confirmed.
  6. Run a normal wash with the right detergent and amount and confirm the code does not return.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

There is usually no cost beyond changing detergent or cleaning the filter; the range starts at a drain path cleaning and reaches the high end if the drain pump or level sensor must be replaced.

Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026

Frequently asked questions

My display shows Sud or SdS. Is it the same code?

Yes. Samsung models show this alert as Sud or SdS; the meaning is the same: too many suds in the drum.

Does this code mean the washer is broken?

Usually not. It is an alert about heavy suds, and the washer tries to clear them and continue. A real fault is rare and shows when the code repeats with the correct detergent.

Is using less detergent enough?

Usually yes, especially with small loads. Using detergent made for automatic washers matters more than the amount.

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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.

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