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 Junkers Euromaxx ZWC28-1MF2A 23 reconditioned. Contrast PCB code, its revision and connectors; share Boiler model is not enough to confirm equivalence. PCB elongated green with blue blocks, orange relay and Module from Display with two digits.
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 double-digit Display and blue blocks. Compare views from the same angle and complete Part identification removed.
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: Junkers Euromaxx ZWC28-1MF2A 23. 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 two-digit Display and the blue blocks and the location of its connectors; the color alone does not identify a variant.
Use the two-digit Display and the blue blocks and the complete silhouette as a reference, checking both sides and the orientation of the connectors when visible.