Samsung Washer code **E0** is associated with **factory test mode is active**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The recorded display form is **E0**. Search normalization stores it as **E0** 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 codeE0
ApplianceWasher
Quick answer
Factory test mode is active.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so E0 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
Samsung Washer code **E0** is associated with **factory test mode is active**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The recorded display form is **E0**. Search normalization stores it as **E0** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
When the E0 condition is present, the display appears while the appliance is otherwise able to respond as expected.
The E0 display becomes more meaningful if the message may be tied to a mode, test, reminder, setup state, or protective condition rather than a failed part.
E0 can be accompanied by this pattern: normal operation can resume after the documented mode or condition is cleared.
Depending on the exact model, e0 appears on the display while the appliance reports: Factory test mode is active.
Why it happens
Possible causes
varies by model — official regional/current support — Factory test mode is active
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
A safe owner-level check is to confirm the exact display characters and appliance model before treating the message as an issue.
The next non-invasive check is to verify the user-facing setting, mode, door, filter, container, or setup condition named by Samsung for this display.
For E0, start by doing this: use the model-specific manual to clear the status; avoid repeated resets if the message reappears unexpectedly.
Before opening any service area, record the code and the cycle stage where it appears.
With E0 recorded, check owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
A safe owner-level check is to power-cycle once only where Samsung's guidance recommends it; if the same code returns, 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 E0, 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 owner-accessible checks do not clear E0, Service is not automatically required. Request diagnosis only if the status cannot be cleared as designed or normal operation does not resume. The repair should confirm the monitored function and its feedback before any board or component is condemned.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Resetting can clear a temporary state, not a persistent issue. If **E0** comes back, preserve the code and move to the safe checks or model-specific service path.
Because **E0** is not treated here as a conventional component failure, service is not automatically required. Clear or complete the documented mode and confirm that normal operation resumes.
No. **E0** tells you which condition or check the control detected. The same display can result from the named component, its wiring, a connector, a supply/airflow/water condition, or the control that reads it.
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 E0** separate from same-looking codes used by other Samsung appliance families.
