Genuine Vaillant 130438 Printed Circuit Board replacement for compatible ThermoCompact and TURBOmax boilers. The PCB acts as the boiler's central control unit, monitoring sensors, thermostats and safety functions to support reliable operation.
Genuine Vaillant Thermocompact VU / Turbomax Pro VUW Printed Circuit Board 0020034604 replacement. This boiler PCB controls sensors, switches and safety functions, acting as the central control unit for reliable appliance operation.