Version and connections
The PCB's shape alone is not enough to confirm that it is a suitable replacement. The service part number and installed variant complete the identification; programming or pinout cannot be inferred from a photo.

Saunier Duval electronic control board 8/411026 · reconditioned power supply. Power-supply board with a mounted grey transformer, blue capacitor and fuse. The label values refer to the circuit transformer. Transformer primary (label): 220 V · 50 Hz. Transformer secondary (label): 24 V · 13 VA. Compare the board code, revision and connectors; sharing a boiler model alone is not enough to confirm equivalence.
To identify the PCB, compare its labels and the layout of the connectors, relays and mounting points. A boiler family may include variants that need to be checked.
Compare the views from the same angle and check the complete identification of the removed part.
Choose a photo of your part to view it beside this unit. Compare the labels, connectors and mounting points from the same angle.
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Catalogue listing: Saunier Duval 8/411026. The part must match the installed appliance’s variant and configuration. The catalogue entry does not establish compatibility with other models.
No models are documented for that search.
The application is listed in the catalogue and must be checked against the installed variant. Compatibility has not been confirmed against an exploded parts diagram.
The PCB's shape alone is not enough to confirm that it is a suitable replacement. The service part number and installed variant complete the identification; programming or pinout cannot be inferred from a photo.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
PCB power supply with Transformer grey mounted, Capacitor blue and Fuse. The label values correspond to the Transformer of the Circuit. Compare these details with the withdrawn Part and their complete identification.
Transformer Marking Mounted: Saunier Duval 8/411026; Transformer Primary (label): 220 V · 50 Hz; Transformer Secondary (label): 24 V · 13 VA. They are readings of the unit photographed and not an equivalent list of references.
This tab identifies the Saunier Duval 8/411026 cataloged application. It does not credit equivalences with other versions; to expand them, it requires service documentation that relates the Part to the specific model.