Samsung washers display a short alphanumeric code on the control panel when the internal diagnostics catch a problem. Knowing what each family of codes actually points to can save a trip to search the manual mid-cycle and helps you describe the issue accurately if you do call for service.
Fill and water-level codes
4C, 4E, and nF all relate to water not filling as expected. 4C/4E usually means the machine isn’t detecting enough incoming water — check that both supply valves are fully open and the fill hoses aren’t kinked or clogged at the inlet screen. nF specifically flags hot and cold supply lines connected backwards, which is common after a washer is moved or reinstalled. A 1E, LC, or LE code points to a water level or leak sensor issue rather than a supply problem, and often needs a technician to check the pressure sensor or hose connections inside the cabinet.
Drain and overflow codes
5E, 5C, and nd all indicate the washer isn’t draining properly, most often because the drain pump filter is clogged with lint, coins, or small items, or because the drain hose is kinked or routed too high. This is one of the more owner-fixable codes — the pump filter access panel is usually at the bottom front of the machine. OC or OE codes mean the tub has overfilled, which can stem from a stuck water valve or a faulty water-level sensor and is worth having checked rather than reset repeatedly.
Balance, door, and suds codes
Ub, UE, or Ur mean the load is unbalanced — redistributing the laundry and restarting usually clears it, but repeated unbalanced codes with evenly loaded laundry can point to a leveling issue or worn suspension. dC, dE, dS, or FL codes relate to the door or door lock not latching or releasing correctly; check for anything caught in the door seal before assuming the lock switch has failed. SUd means the machine detected excess suds, almost always from using too much detergent or a non-HE formula in a front-load machine — reducing detergent and running a rinse cycle typically resolves it.
Sensor, motor, and power codes
tE or tC codes point to a temperature sensor problem, while bE or 6E usually means the control panel detected a button stuck in the pressed position. 8E or 8C relates to the MEMS motor sensor that regulates drum speed, and HC or HE flags a heating problem on models with a water heater. 9C1, 9E1, or PF codes indicate a power supply irregularity — worth checking the outlet and circuit before assuming the control board is responsible. These deeper codes are harder to diagnose from the code alone, since several different failures can trigger the same display.
When to call for service
A code that clears after a power cycle and doesn’t return is usually a one-off glitch. A code that repeats on every cycle, especially anything in the sensor, motor, or power-supply groups, is worth having diagnosed in person rather than reset over and over. Our washer repair technicians can pull the same diagnostic data the control board is reporting and confirm the actual cause — see our full washer error code reference for details on any specific code.
This guide is provided by an independent appliance repair service and is not affiliated with Samsung.
