Error Code: 4E1 Difficulty: Moderate
Problem: Water temperature sensor fault during fill cycle
How to Fix 4E1 Error
- Verify cold water hose connected to cold inlet valve (common installation error).
- Disconnect power and access thermistor at bottom front of tub (behind lower panel).
- Disconnect connector and measure resistance across thermistor terminals at room temperature (70°F/21°C = ~12kΩ).
- Submerge thermistor tip in ice water – resistance should increase to 30-40kΩ within 30 seconds.
- Replace thermistor DC34-00024A if readings OL (open) or 0Ω (short) or unstable.
- Inspect wiring harness for rodent damage or pinched wires near tub mounting points.
- Check connector J3 on main PCB for corrosion – clean with electrical contact cleaner if present.
Samsung Washer 4E1 Checks Before Replacing Parts
- Restart the washer and confirm the 4E1 message returns under the same condition instead of after a one-time interruption.
- Check the simple causes first: load balance, water supply, drain flow, door or lid closure, visible leaks, and power stability.
- Inspect accessible wiring connectors and moisture-prone areas before assuming the control board has failed.
- Use the complete Samsung washer model number from the door, lid, or rear tag before matching any pump, valve, sensor, suspension, lock, or board category.
- If the 4E1 code points to a specific system, test that system directly before ordering replacement parts.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
When It’s Better to Replace Than Repair
Sometimes replacing an appliance makes more financial sense than putting more money into repairs.
Here are a few signs it may be time to shop for a new one:
For repair parts, verify exact fit with the full washer model number before buying; these links are general replacement-appliance shopping options.
- ✓Appliance over 8-10 years old
- ✓Repair cost over 50% of replacement
- ✓Multiple recent breakdowns
- ✓Major component failure
Recommended Replacement Options
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Still Not Working?
If the Samsung washer 4E1 error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.
More options (for a better recommendation)
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📖 View All Error CodesExpert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
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