Does this guide apply to your appliance?
Match the brand, device type and complete display code. The same code can mean something different on another product family or market; a series name does not confirm every model in that series.
Model and family references in this record:
Samsung Bespoke AI SeriesSamsung Ecobubble SeriesSamsung QuickDrive SeriesSamsung WW Series Front LoadersSamsung WF Series Front LoadersSamsung WA Series Top Loaders
Likely causes
- Closed or partially closed water supply taps
- Kinked, twisted, or crushed water inlet hoses
- Clogged mesh filter screens inside the water inlet connections
- Low household water pressure or frozen supply lines
- Clogged detergent dispenser drawer restricting water intake
- Defective internal water inlet valve or faulty pressure sensor
What to try
Verify Water Supply Taps and Inspect Hoses
Easy- Check that both the hot and cold water shut-off valves connected to the washer are fully turned on.
- Inspect the inlet hoses behind the washing machine to ensure they are not twisted, kinked, pinched, or crushed against the wall.
- Ensure the washer has adequate clearance from the wall to prevent hose compression.
- Check another household tap to verify that mains water pressure is adequate and water lines are not frozen or shut off.
- Restart the cycle to see if water enters normally and the code clears.
Clean Water Inlet Valve Mesh Filters
Moderate- Power off the washing machine and disconnect the plug from the mains electrical socket.
- Turn off the hot and cold water supply taps completely.
- Unscrew the water supply hoses from the back of the washing machine, keeping a towel or small container underneath to catch residual water.
- Locate the plastic mesh filter screens inside the threaded inlet connections on the back of the machine.
- Gently pull out the mesh filters using needle-nose pliers.
- Rinse the filters thoroughly under running tap water to remove trapped sediment, sand, and limescale.
- Reinsert the filters securely into the inlet connections and reconnect the hoses tightly by hand.
- Turn the water taps back on, inspect for any leaks, plug the washer back into power, and test a wash cycle.
This step is marked caution. Stop if you are not qualified to continue.
Clean Detergent Dispenser and Power Cycle Washer
Easy- Press the release lever inside the detergent drawer and pull the dispenser drawer completely out.
- Rinse the drawer and siphon caps under warm running water to remove congealed detergent and fabric softener residue.
- Clean the dispenser compartment opening, ensuring the water spray jets are not obstructed.
- Slide the drawer back into position until it clicks securely shut.
- Unplug the washing machine from the wall outlet (or switch off its circuit breaker) for 2 to 3 minutes to allow stored power to drain.
- Restore power, select a quick rinse cycle, and verify operation. If 4C persists, shut off water and power and arrange a professional technician to evaluate internal components such as the inlet valve assembly or pressure sensor.