VAILLANT ECOTEC PLUS 824 831 837 937 (2012) CIRCUIT BOARD PCB 0020135165

Will fit: Vaillant Ecotec Plus 824 Boiler. Will fit: Vaillant Ecotec Plus 831 Boiler. Vaillant Ecotec Plus 837 Boiler. Will fit: Vaillant Ecotec Plus 937 Boiler. PCB's: All faulty components are replaced and dry joints re-soldered.

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