The printed circuit board or ( pcb ) is the control centre of the appliance. It controls and monitors every process that occurs via the sensors, switches and thermostats. It also enforces the safety parameters, making sure that the boiler ceases to functi
Supplier Part Number: 0020040154
Fits a number of Vaillant Boilers
Comes with Plastic Case
Technical specification
Waist Sizeaa35ch13fxTypePrinted Circuit BoardSupplier Part Number20040154Brand NameVaillant