Samsung washer 4C or 4E error: water inlet checks

A Samsung washer showing 4C or 4E has not received water as expected; this is different from the 5C or 5E drain error. Samsung lists low flow, a closed tap, a kinked inlet hose, clogged mesh filters and, less often, a blocked detergent drawer as checks the user can perform. Keep the exact code visible and confirm the model before moving the appliance because hose arrangements vary. Work from the household supply toward the machine, restoring each connection before testing, and do not replace an inlet valve merely because the code appeared.

Before checking Samsung Washing machine

Disconnect mains power and close the water supply before loosening any hose; place towels below the connection and never work on a live wet appliance.

What this symptom can mean on Samsung Washing machine

Water cannot reach the washerA partly closed tap, insufficient pressure or a pinched inlet hose can reduce the flow below what the washer expects.

Flow is restricted at the inletRust, sand or scale in the hose mesh filters can trigger the same code even when the tap is open.

4 checks for Samsung Washing machine, starting with Turn off power and inspect the hose

Turn off power and inspect the hose
Unplug the washer, move it only as far as the connected hoses allow and straighten any visible kink. Replace a split, crushed or swollen hose rather than testing it under pressure.
Step completed
Confirm the tap and supply
Open the supply tap fully. Samsung specifies 0.5 to 8 bar and about four litres per minute; ask a plumber to assess low household flow instead of modifying the washer.
Step completed
Clean the inlet mesh filters
Close the water tap, disconnect the inlet hose, gently remove the mesh filters and rinse away debris. Refit them, reconnect both ends and check that every joint is watertight before reopening the tap.
Step completed
Check the detergent drawer and retest
Remove visible detergent obstruction using the model instructions, refit the drawer, reconnect power and start a short programme. Persistent 4C or 4E requires Samsung support.
Step completed

When to stop checking Samsung Washing machine

Stop for a leaking valve, damaged hose thread, inaccessible built-in connection, water near electrical parts or a code that returns after the official checks; arrange qualified service.

Next step

Choose the next step for Samsung Washing machine

For “Samsung washer 4C or 4E error: check the water supply”, base the decision on the documented sequence beginning with “Turn off power and inspect the hose”, not on the warning or symptom alone.

Start with Turn off power and inspect the hose

Work through all 4 checks for Samsung Washing machine. If normal operation returns and no warning sign remains, the diagnosis ends without ordering a part.

Stop the Samsung Washing machine check at a warning sign

Use the stop conditions above for “Samsung washer 4C or 4E error: check the water supply”. A qualified diagnosis should come before replacing the appliance whenever repair safety or feasibility is uncertain.

Sources used

Samsung — Samsung UK defines 4C and 4E as water-supply errors and specifies checking the inlet hose, fully opened tap, 0.5–8 bar supply, mesh filters and detergent drawer.

Last checked: 29 August 2026