What to check first
Can I keep using it?
Do not keep using the appliance while this warning is active.
Do not keep using the appliance if the code points to voltage, wiring, control power, burning smell, smoke, or a possible miswired supply.
- Safe next step
- Use only safe owner-level power checks, then involve a qualified technician or electrician when the source points to wiring or supply voltage.
- Stop when
- Breakers trip, lights dim, the appliance smells hot, wiring may be miswired, or the warning returns after a safe reset.
Do not keep running the appliance when water is visible, a leak warning is active, or water could reach wiring or controls.
- Safe next step
- Stop the cycle if safe, turn off water when appropriate, protect the floor, and avoid repeated resets until the leak source is understood.
- Stop when
- Water is near wiring, cabinetry is getting wet, the leak returns, or the source is not safely visible.
Safety boundaries
Safe first
- Match the exact brand, appliance type, and displayed code first.
- Use the model manual as the final authority for access steps.
- Stop and address visible water before retrying the appliance.
- Disconnect power before any service-access step.
Do not do this
- Do not keep running the appliance while this code is active.
- Do not bypass locks, float switches, leak sensors, or other safety systems.
Common causes include
- Water-heating system not operating as the control expects
- A heater, temperature-control, wiring, or control condition requiring qualified diagnosis
Basic checks
- Use the controls to end the current programme and switch the dishwasher off as the manual directs; a dark display confirms only that the control was turned off, not that the heating fault cleared.
- From outside the closed appliance, check for unusual heat, a hot or electrical smell, smoke, water, or a tripped breaker; leave power off if any is present.
- Photograph the complete DW8210X model label and E3 display for service; the images preserve the exact model and alarm without requiring a panel, heater, sensor, or live-voltage test.
Reset or retry steps
- Although the generic alarm note permits one restart for alarms other than E1 and E11, FaultCodeLab withholds that retry for E3 because it reports a water-heating fault.
- Leave the dishwasher unused until qualified service has evaluated the heating system, even if E3 disappears after power is removed.
When to call a technician
- Contact Smeg technical assistance when E3 appears because heater and temperature-control diagnosis is outside the owner-safe boundary.
- Seek urgent qualified help if the dishwasher becomes unusually hot, smells hot or electrical, smokes, leaks, or repeatedly trips the electrical supply.
Before approving a paid visit, check warranty status and reviewquestions to ask before repair.
FAQ
What does Smeg Dishwasher code E3 usually mean?
Smeg documents E3 on dishwasher model DW8210X as a water-heating fault. Model context matters: The DW8210X-linked manual labels E3 broadly as a water-heating fault and does not identify one failed component or authorize an owner test.
Can I keep using the dishwasher with code E3?
Do not keep using the appliance until the visible issue has been checked and the relevant safety warnings have been addressed. Dishwasher heating circuits combine mains electricity, heat, and water; never remove a panel, touch wiring, or perform energized measurements.
When should I call a technician for Smeg E3?
Contact Smeg technical assistance when E3 appears because heater and temperature-control diagnosis is outside the owner-safe boundary. A qualified technician may check Water-heating system and Temperature-control circuit against the model's service information before treating any part as failed.