Smeg ST65120 Dishwasher: Two END Lights Flashing After a Cycle

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   With the dishwasher stopped, confirm the model and full product code from the rating label, then compare the observed panel with the report: are the 65° and 70° END-section buttons both flashing, and is the light actually green? Do not infer a code from a different Smeg panel.

   Expected result: The label identifies ST65120 and the two END-section indicators match the report, or the model, region or light pattern differs.

   Next step: If it differs, stop using this light pattern as a diagnosis and obtain the exact model manual or service guidance.

   Why this matters

   Why: A match keeps this article's scope; a mismatch means the ST65120 interpretation cannot be transferred to the appliance.

2. Check 2

   Check only the completed-cycle results: is the tub drained, are there no visible leaks, and did the selected wash finish rather than stop partway? Do not run another cycle merely to reproduce the flashing.

   Expected result: The cycle appears complete with a drained tub and no leak, or water remains, the cycle stopped early, or a leak is visible.

   Next step: For the completed, dry case continue to the exact-manual lookup. For standing water or a leak, stop using the dishwasher, isolate water and power only if safe to reach, and arrange qualified service.

   Why this matters

   Why: A completed cycle with no other warning is consistent with a status indication, but the public evidence does not prove the flash meaning. Remaining water, an incomplete cycle or a leak makes a simple end indication unsafe to assume.

3. Check 3

   Use Smeg's official manual finder with the product code from the appliance label and the applicable language or region. Look for the ST65120 panel diagram, end-of-program indication and the documented way to select or cancel a program; do not use an unseen manual rule or an undocumented two-button reset.

   Expected result: The exact manual confirms what the END lights mean and gives a user-facing control step, or no exact manual or matching panel table is available.

   Next step: Follow the documented user step once if the panel responds. If the exact manual is unavailable or the panel does not respond, leave the unit stopped and contact Smeg or a qualified dishwasher technician.

   Why this matters

   Why: Only a matching manual can establish the model-specific light meaning or button sequence. A manual lookup failure is not evidence that the control board is bad.

4. Check 4

   After the manual-based check, observe whether the dishwasher accepts a new program and behaves normally without a leak, standing water, burning smell or repeated warning. Do not remove the door panel, probe wiring, or order an electronic board from the flashing pattern.

   Expected result: The controls respond and a new program can be selected normally, or the panel remains stuck, the warning returns, water remains or a leak appears.

   Next step: Keep the dishwasher out of service for the abnormal case and arrange qualified service. Provide the full product code, the exact flashing pattern, whether the tub drained, and any water or leak observation.

   Why this matters

   Why: Normal control response supports monitoring under the exact manual; a persistent or combined symptom is not explained by the available cycle-end evidence and may require model-specific diagnosis.