Transformers of different functions
A Transformer feed or insulation must not be confused with a spark generator. Replacement requires contrasting the function, stresses and Connection of the original unit.

Transformer Vaillant VMW ES 242-5 reconditioned. Transformer rectangular black with label and lower pins. primary visible: 230 V, 50/60 Hz. secondary visible: 17 V, 18.4 VA. Contrast the voltages indicated, the terminal arrangement and the fixing points.
Compare the label, assembly and layout of connections. Primary and secondary data identify the electrical version; the shape of the housing alone does not determine them.
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 listed in the catalogue: Vaillant VMW ES 242-5. 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.
A Transformer feed or insulation must not be confused with a spark generator. Replacement requires contrasting the function, stresses and Connection of the original unit.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
Transformer is visible rectangular black with label and lower pins.
Primary visible: 230 V, 50/60 Hz; Secondary visible: 17 V, 18.4 VA. They are readings from the photographed unit and not a list of equivalent references.