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 ZWR24-2ADE23 S0404 re-conditioned. Electronic circuit with blue Block, two transparent relays and white connectors; check their fixation points and the position of the grids. Visible marking in PCB: JUNKERS; 8 748 300 034. Contrast the PCB code, its revision and the 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.
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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Application indicated in the catalog: Junkers ZWR24-2ADE23 S0404. The variant and configuration must correspond to the installed equipment; no compatibilitys with other models are added.
No models are documented for that search.
Application taken from the catalogue; does not constitute certified cutting compatibility.
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.
Electronic circuit with blue Block, two transparent relays and white connectors; check their fixation points and the position of the grids. Compare these details with the removed Part and its complete identification.
Visible marking in PCB: JUNKERS; 8 748 300 034. These are readings from the photographed unit and not an equivalent list of references.
This product page identifies the catalogued application Junkers ZWR24-2ADE23 S0404. It does not establish equivalence with other versions; service documentation linking Part to the specific model is required to extend compatibility.