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How to Diagnose and Fix Samsung Washing Machine Error SUD, OE, OF (E3)

Technically Reviewed by Oleg Chudnovski on Nov 13, 2025 | Written by Spark Service PRO Editorial Contributors

Even the most dependable Samsung washing machines can run into problems, especially after years of regular use. When something goes wrong, the washer often displays specific error codes to help you understand what’s happening. Three of the most common ones that confuse homeowners are SUD, OE, and OF (E3).

These codes can signal issues such as excessive soap suds, drainage problems, or water overflow, all of which can affect how well your washer cleans and how safely it operates. In this guide, we’ll break down each error code in simple terms, explain when and why they appear, and show you which parts of the machine are involved.

Most importantly, you’ll learn practical steps to diagnose and fix the problem, so you can get your Samsung washer running smoothly again without stress or guesswork.

When These Error Codes Occur

SUD, OE, OF (E3) Error Codes:

1. Occur When: The SUD, OE, and OF (E3) error codes typically occur during the washing machine's operation, signalling issues related to water drainage and excessive sudsing.
2. Possible Causes:
   • Suds buildup (the SUD error code indicates excessive sudsing during the wash cycle, leading to potential drainage issues). It may happen because of using too much high-sudsing detergent, or residue from water softeners can contribute to suds buildup.
   • Drainage issues (OE): These may be caused by blockages or kinks in the drain hose, issues with the drain pump's functionality, or the accumulation of debris in the drain filter.
   • Overfilling of the drum (the OF (E3) error code may indicate overfilling of the drum, preventing proper water drainage).It may be caused by issues with the pressure switch or water level sensor and obstructions in the hose connected to the pressure switch.
   • Improper Drain Hose Installation: This may occur due to the drain hose not being installed at the recommended height or angle, or if kinks or bends in the drain hose obstruct water flow.
3. What parts of the washing machine are responsible for this error code?

Knowing this helps to effectively diagnose the problem.

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How to Address This Issue

SUD, OE, OF (E3) Error Codes:

Pause and Unplug:

• If the SUD, OE, or OF (E3) error occurs during a cycle, pause the machine and unplug it from the electrical outlet to ensure safety.

Check for Suds Buildup:

• Examine the washing machine for excessive sudsing, which can impede the drainage process.
• Use a low-sudsing detergent or reduce the amount used.

Run a Rinse Cycle:

• Initiate a rinse cycle without adding any detergent to clear excess suds from the drum.
• Repeat the rinse cycle if necessary.

Inspect the Drain Hose:

• Check the drain hose for kinks, bends, or obstructions.
• Ensure the drain hose is properly installed and has no visible damage.

Examine the Drain Pump:

• Inspect the drain pump for debris or foreign objects that may impede its operation.
• Manually rotate the pump impeller to ensure it moves freely.

Clear the Drain Filter:

• Locate and clean the drain filter, which may be clogged with lint, debris, or foreign materials.
• Refer to the user manual for specific instructions on accessing and cleaning the drain filter.

Ensure Proper Installation:

• Verify that the drain hose is correctly installed at the appropriate height and angle to facilitate efficient drainage.
• Adjust the positioning of the drain hose if needed.

Check the Pressure Switch:

• Inspect the pressure switch, which is responsible for monitoring water levels.
• Ensure that the pressure switch hose is not kinked or obstructed.

Run a Test Cycle:

• After performing the checks and potential fixes, run a test cycle to observe the machine's performance.
• Monitor for any recurrence of the SUD, OE, OF (E3) error.

Professional Assistance:

• If the error persists or if there are concerns regarding the drain pump, drain hose, or pressure switch, seek professional assistance.
• Technicians can conduct a thorough diagnosis and address more complex issues.

Final Summary and Key Takeaways for These Error Codes

The SUD, OE, and OF (E3) error codes on Samsung washing machines usually point to too many soap suds, drainage issues, or water overfilling. These issues can impact cleaning performance and may even prevent your washer from completing a cycle. By following the troubleshooting steps in this guide, you can identify the source of the issue, whether it’s excessive detergent, a clogged drain pump, or a drainage blockage, and take the proper steps to fix it.

If you ever need extra help or professional service, our team is always ready to assist. Contact Spark Service PRO at 647-503-6655, and our experienced and authorized Samsung technicians will diagnose the problem and get your Samsung washer working properly again as quickly as possible.