VAILLANT ECOTEC PLUS 824 831 837 937 BOILER PCB 0020107811 WITH 1 YEAR WARRANTY
Will fit: Vaillant Ecotec Plus 824 Boiler. Vaillant Ecotec Plus 831 Boiler. Vaillant Ecotec Plus 837 Boiler. Vaillant Ecotec Plus 937 Boiler. PCB's: All faulty components are replaced and dry joints re-soldered.