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 Vaillant VMW 242/3 re-conditioned. PCB yellow elongated with Transformer, relays and several connector grids distributed along the edge; the reverse shows the tracks and drills. Contrast the PCB code, its revision and connectors; sharing Boiler model 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.
The length of the PCB and the row of connectors on the edge. Compare the views from the same angle and 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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Application listed in the catalogue: Vaillant VMW 242/3. 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.
PCB yellow elongated with Transformer, relays and several connectors grids distributed along the edge; the reverse shows the tracks and drills.
Compare the shape of the PCB, the length of the PCB and the row of connectors of the border and the contour of the visible connectors.