Samsung · Washing Machine

1E

Water Level Sensor Error

Severity

Medium

Seeing 1E on your Samsung Washing Machine display means the appliance self-diagnostic detected "Water Level Sensor Error". Before calling a technician, work through the steps in this guide — the fix is often simpler than you think.

Owner's Summary

Your washer's water level detector is malfunctioning — it either can't tell how much water is in the drum or is getting a faulty reading. The sensor hose often gets clogged with detergent residue and is a quick, free fix.

Symptoms

Samsung washer overfilling or not filling correctly, 1E error code

Common Causes

Defective water level pressure sensor
Clogged or kinked pressure sensor hose
Air leak in pressure chamber
Faulty PCB not reading sensor correctly

How to Fix

1 Locate pressure sensor hose and check for kinks or blockages
2 Blow gently through hose to clear any obstruction
3 Test pressure sensor frequency with a multimeter
4 Replace pressure sensor if reading is outside specification
5 Replace main PCB if sensor tests fine

Tools You'll Need

Multimeter Pliers

These are simple, low-risk fixes most homeowners can do with tools already in a basic toolbox.

Technical Explanation

Samsung uses a frequency-based pressure transducer. At empty, the sensor outputs approximately 26kHz; at full, around 21kHz. The PCB compares the frequency against a lookup table to determine water level. A reading outside the valid range triggers 1E.

Is It Safe to Keep Using?

Monitor the machine during the fill cycle. If the drum overfills, turn off the water supply tap immediately to prevent flooding.

Technician's Pro Tip

The pressure sensor hose is a thin plastic tube running from the bottom of the drum tub up to the sensor on the side panel. Disconnect it and blow through it — if it is blocked, a puff of air will clear it. This alone fixes 1E in many cases.

Related Codes

E2 — Samsung Washing Machine

Water Supply Error

High

4E — Samsung Washing Machine

No Water Supply Detected

High

5E — Samsung Washing Machine

Drain Error — Water Not Draining

High

Frequently Asked Questions

What does error code 1E mean on a Samsung Washing Machine?

Code 1E on a Samsung Washing Machine indicates "Water Level Sensor Error." In practice, the most common trigger is defective water level pressure sensor. Severity is rated medium, and typical repair costs range from $15 to $180.

Can I fix 1E myself, or do I need a technician?

Many cases of 1E can be resolved without a technician. The first step to try: locate pressure sensor hose and check for kinks or blockages. 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 1E showing?

Monitor the machine during the fill cycle. If the drum overfills, turn off the water supply tap immediately to prevent flooding.

How much does it cost to repair 1E on a Samsung Washing Machine?

Repair costs for code 1E typically range from $15 to $180. Pressure sensor: $15–$50; PCB: $80–$180. 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

$15 – $180

Pressure sensor: $15–$50; PCB: $80–$180