The printed circuit board (PCB) is the command centre of a boiler using switches, thermostats, and sensors to monitor and regulate each process taking place across a system. Additionally, it enforces safety precautions by halting boiler operations if internal readings point to a problem, such as high pressure or low water levels.
Fits a number of Vaillant Boilers
Technical specification
Waist Sizeaa18cc94gsSupplier Part Number0010047389Brand NameVaillant