Samsung 1E fault codewhat it means and how to fix it
The machine cannot trust its water level reading. Expect it to drain for three minutes with the power button dead while it makes itself safe.
Take care
What 1E means
Samsung publish 1E, and 1C on newer machines, as a water level sensor issue. The sensor is a pressure switch connected to the outer tub by a thin air hose: as water rises it compresses air in that hose, and the machine reads the pressure to decide how much water is in the drum. Nothing else tells it. Without a believable reading it cannot know whether it is about to overfill or run the heater dry, so it stops.
There is a behaviour published in Samsung’s manuals but not on their website that is worth knowing before you meet it, because it looks like a second fault: on 1C the machine drains for three minutes and the power button does not respond during that time. Pressing it harder achieves nothing and people conclude the machine is dead.
Samsung give the same warning for 4C and for LC. The other thing to know is that a blocked or kinked pressure hose produces exactly the same code as a failed sensor, and the hose is far more likely. It is a soft tube that can trap detergent sludge, particularly on a machine that has only ever run cool cycles.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Pressure hose blocked or sludged | The thin tube between tub and sensor fills with detergent residue and stops transmitting pressure. Most common on machines run only at 30 and 40 degrees. | Common |
| Pressure hose kinked or off its spigot | Often follows a repair or a move, when the tube gets pinched behind the tub or pushed off the sensor body. Costs nothing to correct once it is found. | Occasional |
| Pressure sensor itself failed | The switch stops changing state at the right point. It is an inexpensive part but it lives behind the top or side panel on mains-adjacent wiring. | Occasional |
| Overfilling from a leaking fill valve | The reading is correct and the water level is genuinely wrong, because the valve is passing water when it should be shut. Look for water in the drum after standing overnight. | Occasional |
| Control board not reading the sensor | Diagnosed last, once hose and sensor are known good. The wiring connector at the board is worth inspecting before the board is condemned. | Rare |
What to try yourself
Let it drain first. If the machine is discharging water and the power button is not responding, that is the documented three-minute safety drain, not a dead machine. Wait it out.
Switch off at the wall, wait a full minute, switch back on and start a new programme. This is Samsung’s published remedy and it does clear the code when the reading was a one-off.
Look in the drum before you run anything. If there is standing water in a machine that has been off overnight, the fill valve is passing and that is a different repair — turn the tap off at the wall and get it seen.
Check whether the machine has been moved, levelled or repaired recently. A pressure hose knocked off its spigot during any of those is a free fix, and it is the reason this code often appears the week after something else was done.
If it returns, book an engineer and say it is a water level sensor code. Ask them to check the pressure hose for a blockage before quoting for a sensor, because the hose is more often the culprit and clearing it is labour rather than parts.
Get a qualified appliance engineer to look at your Samsung 1E
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What it costs to fix
Typical repair cost
£0–£150
Time on site
20 minutes
Nothing if a reset holds or the hose has simply come adrift. A pressure sensor fitted is £90 to £150. Clearing a blocked pressure hose is usually charged as a visit rather than a part.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Samsung fault codes
- 4EGet it checkedThe machine asked for water and did not get enough in the time allowed. Nine times out of ten the answer is at the tap rather than inside the machine.Related: water fill and supply
- 5EGet it checkedThe machine could not empty within the time it allows. On a Samsung this is the single most common code, and the filter behind the front flap is the usual answer.Related: same brand
- UEUsually simple to fixThe load is on one side of the drum and the machine has refused to spin. Samsung are explicit that this is not a fault — it is the machine protecting itself.Related: same brand
- dEGet it checkedThe machine cannot confirm the door is locked, so it will not start. On an AddWash there is a second hatch with its own interlock to check.Related: same brand
- SudUsually simple to fixThe machine has detected far more foam than it can spin safely. It is usually too much detergent, and it usually clears itself if you let it.Related: same brand
- 3EGet it checkedThe motor is not turning as commanded. Samsung ask you to power off and retry once, and if it returns it is a repair rather than a glitch.Related: same brand
Own a Samsung washing machine? Save it and its codes come first next time.
Related guides
Common questions about Samsung 1E
Why has the power button stopped working?
It has not. Samsung’s manuals state that on this code the machine drains for three minutes and the power button is inoperative while it does so. The same is documented for 4C and LC. Give it the three minutes and it will respond again.
Is it safe to keep using?
Not really, and not because of shock risk. Without a trustworthy level reading the machine cannot rule out running the heating element in an empty drum or overfilling onto your floor. It stops for good reasons. One reset to test it is fine; ignoring a code that keeps coming back is not.
Is this an expensive repair?
Usually not. If it is the hose, it is labour only — roughly £70 to £110 for the visit. A pressure sensor fitted is typically £90 to £150. It only gets expensive if the answer turns out to be the main board.
My machine shows 1C rather than 1E. Different fault?
The same fault. Samsung renamed their codes from an E suffix to a C suffix, so older machines show 1E and newer ones 1C. Their own published table prints the two together. Note also that in some manuals the code appears as IE with a capital I, because a segment display draws the digit one as a plain vertical bar.
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer support portal
- Manufacturer technical and service documentation
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.