mypros+
Error code reference

Samsung Washer Error Code Uc

Voltage protection pause

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the Uc error code actually means

The Uc code means your Samsung washer detected that the power coming into it from your home's electrical supply is either too low or too high to operate safely, so it paused to protect itself. This is not a broken part inside the machine. Once the power supply returns to a normal voltage level, the washer should resume the cycle on its own.

Diagnostic procedure

The full Uc procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Verify correct voltage (187V-276V) is being supplied; cycle will resume automatically when correct voltage returns.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock Uc procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of Uc

Ranked by how often they cause this code
  1. 1Utility grid brownout or overvoltage event
  2. 2Overloaded household circuit
  3. 3Loose or corroded outlet, wiring connection, or neutral conductor
  4. 4Undersized or degraded supply wiring
  5. 5Failing or overloaded utility transformer

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about Uc

What does Uc mean on a Samsung washer?
Uc is a voltage protection pause code indicating the washer has detected that the incoming supply voltage is outside its safe operating range, either at or below 176V or at or above 287V. The machine pauses the wash cycle automatically to protect its internal electronics and motor. The acceptable voltage range for operation is 187V to 276V. When the supply voltage returns to within that range, the washer resumes on its own.
Is it safe to use my Samsung washer when the Uc code appears?
The Uc code means the washer has already taken action to protect itself by pausing operation. Running the machine through an unsafe voltage condition could potentially damage the motor, control board, or other electronics, so it is best not to attempt to override or force-start the cycle while Uc is active. Wait for the code to clear on its own, which indicates the supply voltage has returned to a safe level.
How much will it cost to fix the Uc error on a Samsung washer?
If the cause is a utility grid fluctuation or brownout, there is no repair cost since the issue resolves on its own. If the problem is a faulty wall outlet or wiring connection, electrician labor typically ranges from around $75 to $250 depending on the scope of work. If undersized or damaged household wiring needs to be replaced, costs can range from a few hundred dollars to over $1,000 depending on the extent of the wiring run. In most cases, no parts inside the washer itself need to be replaced.
How do I fix the Uc error on my Samsung washer?
Start by measuring the voltage at the wall outlet using a multimeter to confirm whether the supply is within the 187V to 276V operating range. If you find the voltage is consistently out of range, check for overloaded circuits in your home, inspect the outlet for loose or corroded connections, and contact your utility provider if the issue appears to originate from the grid. In many cases, simply waiting for grid conditions to stabilize will resolve the pause without any hands-on repair.
Will resetting my Samsung washer clear the Uc code?
A manual reset will not resolve the underlying cause of the Uc code because the issue is with the external power supply voltage, not an internal machine fault. If you reset or power cycle the washer while the voltage is still out of range, the code will return immediately or shortly after. The code will clear and the cycle will resume automatically once the supply voltage stabilizes within the 187V to 276V range.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass