For the Samsung Washer families covered by the source set, **4E1** means **water temperature / hot-cold supply error**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **4E1**. Search normalization stores it as **4E1** while preserving the characters a homeowner actually sees.
Reviewed by Ethan Mercer · Last reviewed August 17, 2026
Written by
Ethan Mercer Appliance Repair Content SpecialistPublished August 17, 2026Updated August 22, 2026Technically reviewed August 17, 2026
Content status:
Verified
Error code4E1
ApplianceWasher
Quick answer
Water temperature / hot-cold supply error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so 4E1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
For the Samsung Washer families covered by the source set, **4E1** means **water temperature / hot-cold supply error**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **4E1**. Search normalization stores it as **4E1** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
4E1 can be accompanied by this pattern: the appliance may stop or limit the affected function when the code is detected.
On affected Samsung washing machine models, the same code may return at a repeatable stage of operation.
When the 4E1 condition is present, other symptoms depend on the model and the subsystem named by Samsung.
The 4E1 display becomes more meaningful if 4E1 appears during the washer stage associated with water temperature / hot-cold supply error.
4E1 can be accompanied by this pattern: the cycle can pause, stop, retry, drain, or refuse to advance until the condition is cleared.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Water temperature / hot-cold supply error
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
For 4E1, start by doing this: record the exact code, model number, and operating stage before resetting power.
With 4E1 recorded, complete only the owner-accessible checks described in the model manual.
A safe owner-level check is to do not replace parts solely from a display code when wiring, conditions, or control feedback can create the same result.
The next non-invasive check is to record the code and the cycle stage where it appears.
For 4E1, start by doing this: check owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
The next non-invasive check is to power-cycle once only where Samsung's guidance recommends it; if the same code reappears, move to model-specific diagnosis.
Important safety warning. Disconnect power and stop use for active leakage near electrical parts, smoke, burning smell, or repeated breaker trips. For 4E1, stop troubleshooting immediately if the symptom crosses into a safety hazard rather than a normal diagnostic condition.
Get help
When to request repair service
If the code returns after the documented basic checks, request model-specific diagnosis of the affected subsystem. In a service visit for 4E1, model-specific testing should follow the water temperature / hot-cold supply error circuit rather than treating the code as proof of one failed part.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
A single documented power reset can help after an external condition or power event is corrected. If **4E1** returns at the same stage, repeated resets only erase useful evidence and do not repair the cause.
Do not keep operating the appliance through a hazardous symptom just to see whether **4E1** clears. If there is heat, water, electrical, gas, or food-safety risk, stop and arrange diagnosis.
The code alone is not enough to justify a part. **4E1** should narrow testing to the affected function; the final cause still has to be verified on the exact model.
The same-looking code can be reused on another Samsung appliance family or reformatted by region/model year. Match the appliance type and exact model before applying a meaning. This page therefore keeps **Washer 4E1** separate from same-looking codes used by other Samsung appliance families.
