If your Samsung washer is displaying a UC, 9C, 9E1, or 9E2 error code, don’t worry—your appliance is not necessarily broken. These codes indicate a power supply error, meaning the washer has detected unstable voltage coming from the electrical outlet. It’s a protective measure to prevent damage to the washer’s sensitive electronic components.

This guide will help you understand the cause of these power-related errors, how to troubleshoot them safely, and when to involve a licensed electrician or certified technician.

What does the UC / 9C / 9E1 / 9E2 Error code mean?

All four codes—UC, 9C, 9E1, and 9E2—signal a voltage irregularity detected by the washer:

• The voltage may be too high or too low for safe operation.

• These errors usually occur during power surges or dips in your home’s electrical system.

• It’s not typically a washer malfunction, but rather a response to external power instability.

  

When the machine senses a potentially unsafe power condition, it will pause operation and display one of these codes.

Common causes of power supply errors

If you’re seeing a Samsung UC error code or related codes, the issue could stem from several sources:

• ⚡ Fluctuating power supply from the utility grid (common during storms or in older neighborhoods)

• 🔌 Shared circuits or overloaded outlets, especially if the washer shares an outlet with other high-power appliances

• 🔧 Damaged wiring, loose connections, or aged wall sockets

• ❌ Extension cords or power strips, which aren’t recommended for high-powered appliances

• 🔩 Internal washer board faults (less common, but possible if the issue persists)

How to fix the UC / 9C / 9E1 / 9E2 Error (Step-by-Step)

Here are some secure and practical measures to consider before seeking professional assistance:  

Step 1: Power Down and Disconnect  

• Switch off the washing machine and unplug it from the electrical outlet.  
• Allow a minimum of 1 to 5 minutes to pass. This will reset the internal sensors of the washer.

  

Step 2: Plug Into a Dedicated Outlet

• Plug the washer directly into a grounded wall outlet.

• Avoid power strips, surge protectors, or extension cords.

Step 3: Restart the Washer

• Plug the washer back in and turn it on.

• Run a short cycle and monitor the display.

Step 4: Observe Other Appliances

• Are lights flickering or breakers tripping in your home?

• These signs may indicate broader electrical instability.

Still getting the error? Try the following:

• ✅ Have a qualified electrician test your outlet’s voltage range.

• ✅ Consider installing a voltage stabilizer or whole-house surge protector.

• ✅ Contact Samsung-authorized service if the washer’s internal power control board may be at fault.

When to call a professional?

It is advisable to reach out to a licensed technician or electrician under the following circumstances:

• If your residence frequently encounters power fluctuations or circuit breaker trips.
• If the error code persists despite having the correct power configuration.
• If you feel uneasy about examining electrical components or measuring wall voltage.

A qualified Samsung washer repair technician is capable of safely evaluating the machine’s control board, while an electrician can ascertain whether your home’s wiring or outlets are affecting the situation.

Conclusion

The Samsung UC error code, along with the codes 9C, 9E1, and 9E2, indicates a power-related issue rather than a mechanical malfunction. Typically, the underlying concern is associated with the voltage supply rather than the washer itself. 

By adhering to the aforementioned steps and ensuring that your washer is plugged into a reliable and dedicated power source, you can rectify the issue and avert potential future electrical damage. 

Should the problem continue, it is essential not to overlook it—protect both your washer and your home by contacting a qualified technician or electrician.