The Vaillant printed circuit board is the boiler central control. By using the thermostats, sensors and switches, it keeps an eye on every procedure. It also enforces safety rules, ensuring that the boiler shuts off if any internal readings indicate a problem with the boiler's internal operations. Since it is programmed to make sure everything is operating as it should, the printed circuit board can be thought of as the boiler's brain.
Compatible with ecoTEC exclusive 832, ecoTEC exclusive 838, VUW 326/4-E and VUW 386/4-E
Technical specification
TypePrinted Circuit BoardCompatible WithEcotec Exclusive 832 – VUW 326/4 and Ecotec Exclusive 838 – VUW 386/4Supplier Part Number0020049194Brand NameVaillant