Samsung 4E1 fault codewhat it means and how to fix it
The machine is being fed hot water when it expects cold. Almost always the fill hose is on the wrong tap, and it is a plumbing fix rather than a fault.
Before you start
What 4E1 means
This is one of the more satisfying codes to look up, because the answer is nearly always simple and the machine is not broken. Samsung group 4E1 with 4C2, 4E2 and 4Ed as a water temperature issue, and their published remedy is a single line: check that your water hose is connected to a cold supply and not a hot supply. A modern washing machine heats its own water and expects to be fed cold. Give it hot and several things go wrong at once.
The machine cannot run a cold or delicate programme at all, because it has no way of cooling water down. Enzymes in biological detergent are destroyed by hot water at the fill stage, so washing comes out visibly less clean. And on a coloured wash you can set dye running. So the code is doing you a favour rather than being obstructive. It usually appears after a kitchen has been refitted, a machine has been moved, or somebody has connected a machine to whichever tap was nearest without checking which was which.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Fill hose connected to the hot tap | The overwhelming cause. Very common after a kitchen refit or a house move, where whoever plumbed it in used the nearest available tap. | Common |
| Hot and cold taps plumbed the wrong way round | The hose is on the tap marked cold, and the tap marked cold is fed from the hot. Worth suspecting where other appliances have behaved oddly since the same work was done. | Occasional |
| Temperature sensor misreading | The genuine fault version, and the rare one. Considered only once the supply has actually been proven cold at the tap. | Rare |
What to try yourself
Look at the tap the machine is connected to. Cold taps and cold valves are normally marked blue; hot are red. If yours is on red, that is your answer.
Do not trust the colour alone. Turn the tap off, unscrew the hose into a bucket, run the tap for thirty seconds and feel the water. Kitchen plumbing is reversed more often than anyone would like.
If it does run hot, be careful — a hot supply at a kitchen tap can be well above 55°C and will scald.Move the hose to the genuinely cold supply. If there is no cold connection under the counter, that is a plumbing job, but a small one.
Run a short cold cycle to confirm the code has gone, and reconnect finger tight plus a quarter turn rather than forcing it.
Get a qualified appliance engineer to look at your Samsung 4E1
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–£120
Time on site
20 minutes
Free if you can reach the taps and swap the hose over. A plumber adding a cold connection under a kitchen counter is typically £80 to £150. Only the rare sensor fault costs more.
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
- 6EGet it checkedThe water is not heating. Samsung do not offer a home remedy for this one — their published instruction is to contact the service centre.Related: heating and temperature
- HOTUsually simple to fixNot a fault. The machine is too hot to open safely, so it is running its fan and holding the door shut until the inside drops to 55°C.Related: heating and temperature
- tEGet it checkedThe machine cannot read the water temperature, so it will not commit to heating. One power cycle is the published remedy; a return means a sensor.Related: heating and temperature
- HE2Get it checkedThe dryer half of a washer dryer has shut itself down because it was getting too hot. Samsung state what happened and offer no remedy at all.Related: heating and temperature
- 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
- 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: same brand
Own a Samsung washing machine? Save it and its codes come first next time.
Related guides
Common questions about Samsung 4E1
Is it damaging the machine to run it on hot?
It is not going to destroy it, but it stops the machine controlling temperature at all, ruins the performance of biological detergent, and can set dye running on coloureds. The machine flags it because the results are bad, not because it is about to break.
Some older machines had a hot fill. Why not this one?
Hot fill made sense when a tank of hot water was already sitting there and washes ran at higher temperatures. Modern machines use much less water, wash cooler, and heat precisely what they need, so drawing a drum of tank water is both slower and less efficient. Cold fill only is now standard.
The hose is definitely on cold. What then?
Then you are into the rare version, where the temperature sensor is misreading. Book an engineer, and tell them you have already proven the supply is cold at the tap — it will save them repeating the check.
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
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.