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Samsung Dishwasher 4C Error Code: Water Supply Checks

Samsung dishwasher error code 4C usually appears near the start of a cycle. The first useful question is whether water can reach the dishwasher at normal pressure.

Water path

Check the water path first

Follow the water path from the home supply to the appliance before assuming a valve, sensor, or control failure.

At-a-glance diagnosis

Likely meaning

4C usually means the Samsung dishwasher did not detect normal water supply. Some owners also search this as Samsung dishwasher error code 4C or 4E.

First safe check

Check the under-sink supply valve, visible hose bends, and household water pressure before moving the dishwasher.

Stop point

Stop if water leaks under the sink, the valve will not turn safely, or 4C returns after visible supply checks.

Visual check order

  1. 1

    Open the dishwasher supply valve fully.

  2. 2

    Inspect the visible supply line under the sink.

  3. 3

    Confirm the sink faucet has normal pressure.

  4. 4

    Do not pull the dishwasher out just for a first check.

Code appearsCheck visible causeRetry onceStop if repeated

What 4C usually means

4C usually means the Samsung dishwasher did not detect normal water supply. Some owners also search this as Samsung dishwasher error code 4C or 4E.

Codes can vary by exact Samsung dishwasher model number, production year, and regional design. Use this as first-pass guidance, then confirm the model-specific manual or manufacturer support page before opening panels or replacing parts.

First checks

Check the under-sink supply valve, visible hose bends, and household water pressure before moving the dishwasher.

A recently closed valve, kinked supply line, or plumbing work under the sink can trigger a fill warning.

  • Open the dishwasher supply valve fully.
  • Inspect the visible supply line under the sink.
  • Confirm the sink faucet has normal pressure.
  • Do not pull the dishwasher out just for a first check.

When to stop

Stop if water leaks under the sink, the valve will not turn safely, or 4C returns after visible supply checks.

Keep the full model number, exact 4C display text, cycle name, and timing ready before contacting Samsung support or a qualified technician.

Model numbers affected

Commonly searched model families include built-in dishwashers, front-control dishwashers, top-control dishwashers, and compact dishwashers.

This is not a confirmed model-number list. Match the exact code to the full model number on the appliance tag before ordering parts, opening panels, or booking service.

Related code pages

Related problem topics

Related troubleshooting guides

FAQ

What is the main point of Samsung Dishwasher 4C Error Code: Water Supply Checks?

4C usually means the Samsung dishwasher did not detect normal water supply. Some owners also search this as Samsung dishwasher error code 4C or 4E.

What should I check first?

Check the under-sink supply valve, visible hose bends, and household water pressure before moving the dishwasher.

When should I stop troubleshooting?

Stop if water leaks under the sink, the valve will not turn safely, or 4C returns after visible supply checks.

Editorial note

This guide is independent educational content. It does not replace the model-specific manual, official manufacturer support, or qualified repair service.