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.

PCB Viessmann Vitodens 100W B1HC reconditioned. Contrast PCB code, its revision and connectors; sharing Boiler model is not enough to confirm equivalence. PCB green with orange transformers, dark relays and white connectors on the edges.
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.
Orange transformers and connectors. Compare views from the same angle and 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.
Your photo stays on your device: it is not sent or stored.

Application listed in the catalogue: Viessmann Vitodens 100W B1HC. The variant and configuration must match the installed equipment; this does not establish compatibility with other models.
No models are documented for that search.
Application taken from the catalogue, pending comparison with the installed variant. This does not constitute compatibility certified against an exploded 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.
Check the shape of the PCB, the orange transformers and the connectors and the location of their connectors; the color alone does not identify a variant.
Use the orange transformers and connectors and the complete silhouette as a reference, checking both sides and the orientation of the connectors when visible.