Samsung Washer 4C Error Code – Water Supply Problem Fix

If your Samsung washer is showing the 4C error code (also displayed as 4E on some models), it's indicating a water supply problem. This comprehensive guide will help you diagnose the issue and get your washer filling properly again.

What Does the Samsung 4C Error Code Mean?

The 4C error code (or 4E error) on Samsung washers indicates a water supply problem. This means the washer is not receiving adequate water flow or the water is not entering the machine within the expected time frame.

When the control board detects insufficient water flow, it triggers the 4C error and stops the cycle to prevent damage or poor wash performance.

Most Common Causes

• Closed water supply valves – Hot or cold water valves not fully open
• Kinked inlet hoses – Water hoses bent or crushed behind the washer
• Clogged inlet screens – Debris blocking the mesh filters in the hoses
• Low water pressure – Insufficient water pressure from house supply
• Failed water inlet valve – Valve solenoids not opening properly
• Frozen water lines – Water supply frozen in cold weather (rare)

Parts That Usually Fix the 4C Error

Most 4C error repairs involve cleaning inlet screens or replacing the water inlet valve. Here are the most common replacement parts for Samsung washers:

How to Fix the Samsung 4C Error

Follow these troubleshooting steps to diagnose and fix the 4C error code:

Step 1: Check Water Supply Valves

1. Locate the hot and cold water valves behind the washer
2. Turn both valves fully counterclockwise to the open position
3. Ensure both valves are completely open (not just partially)
4. Test the washer – this fixes the 4C error in many cases

Step 2: Inspect Water Inlet Hoses

1. Pull the washer away from the wall
2. Check both inlet hoses for kinks or crushing
3. Straighten any kinked hoses
4. Ensure hoses are not pinched between the washer and wall

Step 3: Clean Inlet Screen Filters

1. Turn off water supply valves
2. Disconnect the inlet hoses from the back of the washer
3. Look inside the inlet ports – you'll see small mesh screens
4. Use needle-nose pliers to carefully remove the screens
5. Rinse screens under running water to remove sediment
6. Reinstall screens and reconnect hoses
7. Turn water back on and test

Step 4: Check Water Pressure

1. Disconnect one inlet hose from the washer
2. Place the hose end in a bucket
3. Turn on the water valve
4. Water should flow strongly (at least 1 gallon in 30 seconds)
5. If flow is weak, you have a house water pressure issue
6. Repeat for the other hose

Step 5: Test the Water Inlet Valve

1. Unplug the washer and turn off water supply
2. Access the water inlet valve (usually at the back)
3. Disconnect the wire harness
4. Use a multimeter to test each solenoid (should read 500-1500 ohms)
5. If readings are out of range or show no continuity, replace the valve

Step 6: Replace the Water Inlet Valve

1. Unplug the washer and turn off water supply
2. Disconnect inlet hoses from the valve
3. Disconnect the wire harness
4. Remove mounting screws and pull out the old valve
5. Install the new valve in reverse order
6. Reconnect hoses, wire harness, turn on water, and test

⏱️ Estimated Repair Time: 15–45 minutes depending on the issue

Signs Your Water Inlet Valve Is Failing

Watch for these warning signs that indicate your water inlet valve needs replacement:

• ✗ Washer not filling with water at all
• ✗ Very slow water fill (takes over 10 minutes)
• ✗ 4C or 4E error code appears on display
• ✗ Water continues to flow even when washer is off (valve stuck open)
• ✗ Only hot or cold water fills (one solenoid failed)
• ✗ Humming noise from inlet valve but no water flow

Compatible Samsung Washer Models

The 4C error code appears on most Samsung front-load and top-load washers, including:

Frequently Asked Questions

Still have questions about the 4C error? Contact our expert support team and we'll help you diagnose the problem and find the right replacement part for your Samsung washer.