Samsung · Washing Machine

4E

No Water Supply Detected

Severity

High

The error code 4E on your Samsung Washing Machine indicates a specific system failure categorized as "No Water Supply Detected". This guide walks you through the most likely causes and the correct repair sequence.

Owner's Summary

The machine started a cycle but detected zero water coming in. The most common reason is simply that the water tap behind the machine is closed or barely open. Check that first before calling a technician.

Symptoms

Washing machine pauses at the start of a cycle, display shows 4E

Common Causes

Water tap turned off behind machine
Clogged water inlet filter
Faulty water inlet valve solenoid
Frozen supply pipes in winter

How to Fix

1 Fully open both water supply taps
2 Turn off water, disconnect hoses and clean mesh filters
3 Check for frozen pipes if temperature is below freezing
4 Replace water inlet valve if problem persists

Tools You'll Need

Pliers Soft Brush Towels / Bucket

Most of these fixes need only basic hand tools. If your repair requires opening electrical housings or testing live components, a multimeter and basic electrical safety knowledge are essential — when in doubt, call a technician.

Technical Explanation

The water level pressure sensor sends a signal to the main PCB. If no pressure change is detected within 4 minutes of the inlet valve solenoid being energized, the board logs 4E and terminates the fill cycle.

Is It Safe to Keep Using?

No immediate risk to the appliance. Investigate within 24–48 hours to avoid mold buildup from a partially wet drum.

Technician's Pro Tip

The 4E error is Samsung's catch-all for 'no water detected.' Always start at the tap, then the hose filter, then the valve — in that order. Skipping steps wastes money.

Related Codes

E2 — Samsung Washing Machine

Water Supply Error

High

5E — Samsung Washing Machine

Drain Error — Water Not Draining

High

E9 — Samsung Washing Machine

Overflow Error — Water Level Too High

High

Frequently Asked Questions

What does error code 4E mean on a Samsung Washing Machine?

Code 4E on a Samsung Washing Machine indicates "No Water Supply Detected." In practice, the most common trigger is water tap turned off behind machine. Severity is rated high, and typical repair costs range from $0 to $150.

Can I fix 4E myself, or do I need a technician?

Many cases of 4E can be resolved without a technician. The first step to try: fully open both water supply taps. If that doesn't clear the code, work through the remaining steps in the "How to Fix" section above before assuming a part needs replacing.

Is it safe to keep using my washing machine with code 4E showing?

No immediate risk to the appliance. Investigate within 24–48 hours to avoid mold buildup from a partially wet drum.

How much does it cost to repair 4E on a Samsung Washing Machine?

Repair costs for code 4E typically range from $0 to $150. Tap adjustment: $0; Inlet valve: $40–$150 + labor. Costs on the low end usually reflect a DIY fix with no parts required, while the high end reflects a part replacement plus professional labor.

Estimated Repair Cost USD

$0 – $150

Tap adjustment: $0; Inlet valve: $40–$150 + labor