Identification of this unit
Check the composition of the Assembly and the connections between circuits; a one-sided photograph does not allow to identify the electronic revision.

PCB Viessman Vitodens 300 · Viessmann. Spare part reconditioned. Contrast PCB code, its revision and connectors; share model Boiler is not enough to confirm equivalence. The image features overlapping circuits seen by the welding face.
The PCB coordinates functions of the equipment through its inputs, outputs and circuits of Control. To choose a Replacement part, it is interesting to identify the complete revision and how it connects to the Boiler, in addition to the commercial name.
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 on this product page: PCB Viessman Vitodens 300 · Viessmann. The service reference in the parts diagram and identification of installed Part must match the appliance variant. The Boilers family name does not establish compatibility with other versions.
No models are documented for that search.
If identification does not match, consult before purchasing.
Check the composition of the Assembly and the connections between circuits; a one-sided photograph does not allow to identify the electronic revision.
A Boiler that does not boot may have a power problem, sensors or other components. The diagnosis must precede the replacement of the Control board.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
No. The applicable reference, revision and configuration provided by the manufacturer for the equipment must also coincide. The appearance and connectors help to rule out differences, but do not replace that identification.
The image features superimposed circuits seen on the face of solders. Check the composition of the Assembly and the connections between circuits; a one-sided photograph does not allow to identify the electronic revision.