The Worcester Bosch 87483004880 Printed Circuit Board (PCB) is a genuine replacement control module engineered to manage the key electrical and operational functions of your boiler. This PCB orchestrates essential processes including ignition sequencing, pump and fan control, sensor input monitoring and safety interlocks, ensuring smooth, efficient and reliable heating and hot water performance. With integrated diagnostic logic and safety fault handling, it helps maintain stable operation and supports accurate fault indication when issues arise.

This control board is compatible with Worcester Bosch 24Si, 28Si and RD628 series boilers that specify part number 87483004880 in their parts documentation. To ensure correct fitment, always check the existing PCB part number on your boiler or refer to the appliance’s service information before installation, as precise control boards vary between models and control platforms.

Supplied ready for direct replacement, the 87483004880 PCB integrates seamlessly with the boiler’s existing wiring harness and control interfaces without modification. Installing this genuine Worcester Bosch printed circuit board restores dependable electrical control and system responsiveness, making it an ideal choice for professional engineers carrying out repair or maintenance work on compatible boilers.