If a Samsung dishwasher shows **E1**, the verified Samsung meaning in this research set is **water supply / fill error**. Use the code to narrow the diagnosis, then confirm the exact model because code scope can change by product generation or region. A display code is evidence from the control system, not a component test result. That distinction matters because a connector, supply condition, obstruction, or feedback signal can mimic a failed component. The recorded display form is **E1**. Search normalization stores it as **E1** 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 codeE1
ApplianceDishwasher
Quick answer
Water supply / fill error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so E1 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
If a Samsung dishwasher shows **E1**, the verified Samsung meaning in this research set is **water supply / fill error**. Use the code to narrow the diagnosis, then confirm the exact model because code scope can change by product generation or region. A display code is evidence from the control system, not a component test result. That distinction matters because a connector, supply condition, obstruction, or feedback signal can mimic a failed component. The recorded display form is **E1**. Search normalization stores it as **E1** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
Depending on the exact model, the appliance may receive too little water or fail to confirm the expected water level.
One clue that supports the E1 diagnosis is that the code often appears near the beginning of a fill stage.
While E1 is active, water may enter slowly, intermittently, or not at all.
When the E1 condition is present, e1 appears during the dishwasher function associated with water supply / fill error.
Depending on the exact model, the cycle can stop, drain, fail to fill/heat, or repeat a stage.
Why it happens
Possible causes
varies by model — official regional/current support — Water supply / fill 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.
Before opening any service area, confirm the household water supply valve is fully open where the appliance uses one.
To rule out an accessible cause, inspect accessible supply hoses for kinks and clean inlet screens only as described by Samsung.
As an external check for E1, verify whether water actually enters before the code appears.
A safe owner-level check is to verify hot/cold hose routing and water pressure when relevant to the exact appliance.
Before opening any service area, record the code before resetting.
Before opening any service area, check water supply, drain path/filter, door, detergent/suds, and visible leaks only when relevant.
Important safety warning. Stop use for active leakage near electrical parts, burning smell, or repeated breaker trips. Do not defeat leak or door-safety switches. For E1, 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 E1, If supply flow is proven good and the display returns, inlet valves, flow/level sensing, wiring, or control electronics may require diagnosis. 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.
You can try the one reset Samsung documents for the model, but **E1** returning afterward means the condition still exists. Note the operating stage instead of cycling power repeatedly.
That depends on the accompanying symptom. A code with no safety hazard may allow a short diagnostic check, but **E1** should not be ignored if performance is deteriorating or the display keeps returning.
No. **E1** 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 **Dishwasher E1** separate from same-looking codes used by other Samsung appliance families.
