DIY Error Codes

Samsung washer error 4C

Water supply error

Open the taps, straighten the hoses, then clean the inlet mesh filters.

Unplug the washer before any cleaning or maintenance.
Why
Samsung: "Before cleaning or performing maintenance, unplug the appliance from the wall socket." "Do not attempt to repair, disassemble, or modify the appliance yourself." (Front-load manual pp.9, 13; top-load manual pp.9, 12.)

Fix it step by step

Step 1 of 6

  1. Check the taps and hoses

    • 3 min
    • None
    • DIY

    Taps open, not frozen, hoses not clogged or kinked.

    Why & details

    Check the taps and hoses.

    Samsung chart, 4C (top-load p.56): "Make sure the water taps are open." "Make sure the water hoses are not clogged." "Make sure the water taps are not frozen." "Make sure water hoses are not kinked." Front-load (p.54): "Check the connection to the water lines (including water taps)."

    Did the code clear?

  2. Check water pressure and tap connections

    • 3 min
    • None
    • DIY

    Enough pressure; cold and hot taps on the right hoses.

    Why & details

    Check water pressure and tap connections.

    Samsung chart, 4C (top-load p.56): "Make sure the washing machine is operating with sufficient water pressure." "Make sure that the cold water tap and the hot water tap are properly connected."

    Did the code clear?

  3. Clean the inlet mesh filters

    • 20 min
    • Pliers, Towel
    • Caution

    Safety: Unplug the washer before any cleaning or maintenance. Close the water taps first.

    Unplug, close the taps, disconnect the hoses, pull and clean the filters.

    Why & details

    Clean the inlet mesh filters.

    Samsung, Mesh filter (front-load p.43; top-load p.48): "Turn off the washer, and then unplug the power cord." Close the water taps; loosen and disconnect the water hoses from the back of the washer and cover each hose end with a cloth or towel. "Use pliers to pull out the mesh filter from the inlet valves." Clean the filters thoroughly in water, dry them completely (not in direct sunlight), reinsert them, reconnect the hoses and open the taps.

    Did the code clear?

  4. Front-load: power-cycle and retry

    • 5 min
    • None
    • DIY

    Off, wait 2-3 minutes, on, try again.

    Why & details

    Front-load: power-cycle and retry.

    Samsung chart, 4C (front-load p.54): "Power the washer off. Wait 2-3 minutes, power the washer on, and then try again."

    Did the code clear?

  5. Top-load: wait out the auto-drain

    • 3 min
    • None
    • DIY

    The washer drains for 3 minutes after 4C.

    Why & details

    Top-load: wait out the auto-drain.

    Samsung (top-load p.56): "If the washer displays 4C, the washer will automatically drain for 3 minutes. During this time, the Power button is inoperative."

    Did the code clear?

  6. Call Samsung service

    • Decision
    • None
    • Pro decision

    If 4C keeps coming back.

    Why & details

    Call Samsung service.

    Samsung (front-load p.55): "If any information code keeps appearing on the screen, contact a local Samsung service center."

    Still showing 4C?Need a pro → call a pro

Code cleared. Nice work.

Watch the display for a day to make sure it stays clear.

Back to top

Fixed after any step? Watch the display for a day to make sure it stays clear. Still 4C after step 6? call a pro.

What 4C means

The washer is not getting water. Samsung lists closed or frozen taps, clogged or kinked hoses, low water pressure and clogged inlet mesh filters.

More detail
Samsung's Information codes table lists 4C as "Check the water supply line." on the front-load WF45T6000A* (p.54) and "Water is not supplied." on the top-load WA54R7200A*/WA50R5200A* (p.56). Both manuals' maintenance sections say: "If a mesh filter is clogged, the 4C information code appears on the washer's display screen." (front-load p.43; top-load p.48)

5-minute checks

Full answer & models

Samsung washer 4C means water is not being supplied. Check the taps and hoses, then clean the mesh filters in the water inlets.

Applies to: WF45T6000A* (front-load)WA54R7200A*WA50R5200A* (top-load)
Also searched as: Samsung washer 4C, Samsung washer 4C code, Samsung washer error code 4C, Samsung 4C error, Samsung washer not filling code

Call a pro if…

  • 4C keeps returning after the tap, hose and filter checks (Samsung: service center).
  • A tap or supply line in the house is frozen or leaking (a plumber).
  • An inlet valve or internal part would need replacing.

FAQ

What does 4C mean on a Samsung washer?

Water supply problem. Front-load: "Check the water supply line." Top-load: "Water is not supplied."

How often should I clean the mesh filters?

Samsung says once or twice a year (top-load p.48), and more often on the front-load if water comes from an aged water system or well (p.43).

Why won't the Power button work after 4C?

On the top-load models, Samsung says the washer drains for 3 minutes after 4C and the Power button is inoperative during that time (p.56).

Source: Samsung Washer User Manual WF45T6000A* (front-load, DC68-04006R-05): Information codes pp.54-55, Mesh filter p.43, Safety pp.9, 13; also Samsung Washer User Manual WA54R7200A*/WA50R5200A* (top-load, DC68-04037J-05) pp.48, 56. Written by the DIY Error Codes team. Updated 2026-10-17. DIY Error Codes is independent and not affiliated with or endorsed by Samsung.