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SAMSUNG 4C

Samsung Washer Error 4C: Washer Not Filling With Water

Clear meaning, realistic next steps, and safe guidance without turning the page into a long repair manual.

What it means

Samsung 4C usually means the washer is not getting enough incoming water to finish the fill on time.

Severity

Medium - some user checks may help, but repeated faults often need service.

Can you fix it yourself?

Partial — start with DIY steps

Most likely cause

Water supply valve behind the washer not fully open — the most common cause

Also displayed as 4C, 1 4C, nF, 4E on some models.

Estimated time for safe first checks: 10–20 min for basic checks; Professional if inlet valve fails.

Step-by-Step DIY Fix Guide

  1. SAFETY: Turn the washer off before disconnecting any hose, and keep towels nearby in case water drains from the line.
  2. Check that both water supply taps are fully open, even if you are only running a cold cycle on a mixed-temperature model.
  3. Inspect the inlet hoses for kinks, crushing behind the machine, or obvious freezing if the washer is in a cold space.
  4. Turn off the taps, disconnect the hoses from the washer, and rinse the inlet screens only if they are user-accessible on your model.
  5. Reconnect the hoses securely, turn the taps back on, and run a short fill or rinse cycle to see whether 4C clears.

If 4C comes back after the first checks

  • Try another cold-water fixture in the home to rule out a broader supply-pressure issue.
  • If the washer hums but little or no water enters, the inlet valve may be failing even though the taps are open.
  • If the code appears only on certain cycles, compare the fill pattern with your manual in case one temperature path is restricted.

What This Error Means

Samsung 4C means the washer is not filling with water quickly enough to continue the cycle. The machine pauses because it cannot confirm normal incoming flow within the expected time window.

Most 4C cases come from the supply side rather than a failed electronic part. Start with the simple checks first: the water taps, the inlet hoses, and the small mesh screens where the hoses connect to the washer.

If water is reaching the washer normally and the code returns, the next most likely issue is an inlet-valve problem or a model-specific pressure-sensing fault.

Most Likely Cause by Symptom

No water enters at all when the cycle starts.

Likely cause: A shut tap, blocked inlet screen, or failed valve.

Check first: Confirm the supply taps are fully open and the hose screens are clear.

A little water enters, then the machine stops with 4C.

Likely cause: Restricted flow or low household pressure.

Check first: Check for kinked hoses and test another nearby cold-water fixture.

The code appears only on some cycle types.

Likely cause: One temperature path may be restricted more than the other.

Check first: Compare the hot and cold supply hoses and verify both taps are open.

Common Causes

  • One or both water supply taps are partly closed.
  • The inlet hose is kinked, crushed, or frozen.
  • Sediment is blocking the inlet screens where the hoses connect.
  • Household water pressure is too low for the washer to complete fill on time.
  • The inlet valve is failing even though the external water supply looks normal.

What Not to Do

  • Do not keep restarting the washer without checking the water supply path first.
  • Do not force the hose fittings or over-tighten them when reconnecting the lines.
  • Do not assume 4C is a control-board problem before the inlet screens and hoses are checked.

Model and Display Variation Notes

Model-family notes

  • Samsung washers can show 4C, nF, or 4E-family displays for the same basic no-fill condition depending on panel style.
  • Some models are more sensitive to low household pressure and will trigger the code before water flow stops completely.

Display and panel differences

  • This same fill fault may also appear as nF or 4E on other Samsung washer panels.
  • If your panel shows 4C2 instead, check the separate hot/cold hose reversal guide because that is a different setup issue.

Parts, Tools and Service Options

Common parts

  • Water inlet valve assembly if solenoid has failed ($30–$80)
  • Inlet hose if damaged ($10–$25)

Manual and model check

Check your exact model and manual before ordering any Samsung parts.

Service option

Service visit if the washer still will not fill after supply-side checks are complete.

Suggestions in this section are organized to support the troubleshooting flow first. Any future affiliate relationships should be disclosed clearly.

When Not to Keep Troubleshooting

Water supply and inlet screens look normal but 4C returns repeatedly.

  • The washer hums at fill but little or no water enters the drum.
  • You suspect a failed inlet valve or an internal pressure-sensing issue.

How to Prevent It Recurring

  • Check inlet filter screens every 6 months — mineral deposits from hard water gradually clog them and reduce flow
  • Turn the supply valves off when leaving home for extended periods — it prevents hose failures from causing floods

Related Error Codes

Extra notes

  • This page is based on Samsung support material and stays conservative where model-specific guidance may vary.
  • The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.

Source and model notes

Last reviewed: 2026-04-08

Based on: Based on Samsung washer support language and edited to help users separate simple supply-side restrictions from a true inlet-valve failure.

View Samsung US Official Support

Model coverage note: Exact display variants and inlet-valve behavior vary by Samsung washer series, so use this page as a safe starting point rather than a model-specific service procedure.

Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.

Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.