The Worcester 87483003130 PCB HeatrOnic II is a genuine control board designed to act as the central management system for your boiler’s electrical and operational functions. This printed circuit board coordinates critical processes such as ignition sequencing, fan and pump control, sensor monitoring and safety fault detection, ensuring your heating and hot-water system operates smoothly, efficiently and reliably. Built to Worcester Bosch quality standards, it supports accurate diagnostics and stable performance under normal domestic use.

This HeatrOnic II PCB is compatible with a range of Worcester and Worcester Bosch boilers that specify part number 87483003130 in their parts documentation. It is typically found in boilers utilising the HeatrOnic II control platform, and to ensure correct fitment always verify the part number on your existing board or check your boiler’s service manual before installation.

Supplied ready for direct replacement, the 87483003130 PCB integrates seamlessly with the existing wiring harness and internal control components without modification. Installing this genuine Worcester Bosch control board restores dependable electrical control, improves system responsiveness and supports ongoing reliability, making it an ideal choice for professional engineers performing repair or maintenance work.