Samsung Washer 4E Error Code — Water Supply / Not Filling

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Quick Answer

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The 4E error code means your Samsung washer is not receiving water correctly. In most cases the cause is simple — a water supply valve that isn't fully open, or a kinked inlet hose. This is usually a 10-minute DIY fix with no tools and no parts. If the code persists after checking the supply, the water inlet valve may have failed and need replacement.

Time

10–15 min

Difficulty

Easy

Tools

None needed

DIY Cost

Free

Time

10–15 min

Tools

None needed

Difficulty

Easy

DIY Cost

Free

What the 4E Code Means

What the 4E Code Means

Your Samsung washer runs a check at the start of every cycle to confirm water is entering the drum at the expected rate. When it doesn't detect enough water within a set time window, it stops the cycle and displays 4E (or 4C on newer models — the same fault, different display generation).

This is a protective code, not a sign of major damage. The washer is telling you it can't get water, and it would rather pause than run a cycle dry. The cause is almost always somewhere in the water supply path: the household valves, the inlet hoses, the inlet filter screens, or — less commonly — the washer's internal water inlet valve.

Because the most common causes are external to the machine, 4E is one of the most DIY-friendly codes on a Samsung washer. Work through the steps below in order before assuming a part has failed.

Common Causes — Most Likely First

Supply valve not fully open. The hot or cold water valve behind the washer is partially closed or was never opened fully after an install or move. Very common

Kinked or bent inlet hose. The supply hose behind the washer is pinched against the wall or twisted, restricting flow. Common

Clogged inlet filter screen. Sediment has built up in the small mesh filters where the hoses connect to the washer. Common

Low household water pressure. A pressure issue affecting the whole home, or a recently shut-off main that wasn't fully reopened. Occasional

Failed water inlet valve. The washer's internal solenoid valve has failed and no longer opens to admit water. Needs a technician

How to Fix the 4E Error — Step by Step

Turn off and unplug the washer

Power the washer off and unplug it, or switch off its circuit breaker. This clears the current error state and is a safe starting point for checking the water connections.

Check both water supply valves are fully open

Locate the hot and cold water valves on the wall behind the washer. Turn both fully counter-clockwise to the open position. Even if a valve looks open, turn it to confirm — a partially open valve is the single most common cause of this code.

Note: Many washers use both lines even on cold-only cycles. If the hot line is not connected or not open, you can still get a 4E error.

Inspect the inlet hoses for kinks

Pull the washer out far enough to see the hoses. Straighten any bends, twists, or pinch points where a hose meets the wall or the back of the machine. The hose should run in a smooth curve with no sharp angles.

Check both water supply valves are fully open

Turn off the supply valves, then unscrew the inlet hoses from the back of the washer. Inside each connection point is a small mesh filter screen. Check for sediment or debris and rinse the screens clean. Reconnect the hoses firmly and reopen the valves.

Tip: Take a photo before disconnecting so you can match hot-to-hot and cold-to-cold when reconnecting.

Restore power and run a rinse cycle

Plug the washer back in and start a short rinse or quick-wash cycle. Watch the first minute — water should enter the drum steadily. If the cycle runs without the code, the issue is resolved.

If the code returns — the inlet valve has likely failed

If 4E reappears after working through every step above, the washer's internal water inlet valve has most likely failed. This is a sealed electrical component that requires diagnostic confirmation and replacement — a job for a technician.

When to Call a Technician

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Most 4E errors are resolved with the steps above. Book a professional repair if:

  • The code returns after you've confirmed the valves, hoses, and filter screens are all clear

  • You can hear the inlet valve buzzing or clicking but no water enters

  • Water enters extremely slowly even with everything open and clean

  • You're not comfortable disconnecting the supply hoses yourself

Related Samsung Washer Codes

If You Fix It Yourself

$0

Opening valves, straightening hoses, and cleaning filter screens requires no parts and no tools.

Inlet Valve Replacement

$130–$210

Opening valves, straightening hoses, and cleaning filter screens requires no parts and no tools.

If You Fix It Yourself

$0

Opening valves, straightening hoses, and cleaning filter screens requires no parts and no tools.

Inlet Valve Replacement

$130–$210

Opening valves, straightening hoses, and cleaning filter screens requires no parts and no tools.

Tried Everything? We'll Fix Your Samsung Washer.

Same-day appointments across Boston and surrounding neighborhoods. Certified technicians. 90-day warranty on every repair. No diagnosis surprises.

Same-day appointments across Boston. Certified Samsung technicians, common

parts stocked on the truck, and a 90-day warranty on every repair.

Frequently Asked Questions

Why does my Samsung washer show 4E even on a cold wash?

Many Samsung wash cycles draw from both the hot and cold supply lines regardless of the temperature setting. If the hot water valve is closed or the hot hose isn't connected, the washer can still throw a 4E error during a cold cycle. Make sure both supply valves are open.

Can I still use my washer with a 4E error?

No — when the 4E code appears, the washer halts the cycle because it cannot fill with water. Running it in this state accomplishes nothing and the cycle won't progress. Resolve the water supply issue first.

How much does it cost to fix a 4E error?

If the cause is a closed valve, kinked hose, or clogged filter screen, the fix is free and takes about 10–15 minutes. If the washer's internal water inlet valve has failed, professional replacement typically runs $130–$210 in the Boston area, parts and labor included.

Does a 4E code mean I need a new washer?

Almost never. 4E is a water supply error, not a sign of a failed drum, motor, or control board. In the large majority of cases it's resolved without any parts at all. Even a failed inlet valve is an inexpensive, routine repair.