placa caldera vaillant 0020135165 R452A 37503687 (LB LTO 425)

37503687 (LB LTO 425)

ESF656 W ELECTROLUX

854814122021 GSU 61415 A++ TR BAUKNECHT

HCA854450A

and Wellington

placa caldera vaillant 0020135165 R452A 37503687 (LB LTO 425)The Vaillant electronic board 0020135165 is an essential control module for the proper operation of Vaillant boilers, especially models VM 386 5 5 R4 and VMW 306 5 5 C. O. This board manages ignition, regulation, and boiler safety by processing sensor signals and controlling elements such as the burner and circulation pump. What problem does this replacement solve? Boiler that does not turn on or does not respond to ignition Temperature regulation