The Worcester Bosch 87483004170 Printed Circuit Board (PCB) is a genuine replacement control board engineered to manage your boiler’s electrical and operational systems with precision and reliability. This control module governs key functions including ignition sequencing, fan and pump control, sensor monitoring and safety interlocks, ensuring smooth, efficient heating and hot-water performance. Integrated diagnostic logic and safety protections help maintain stable operation and support accurate fault indication when needed.

This PCB is compatible with Worcester Bosch 24Si, 28Si and RD628 series boilers that specify part number 87483004170. To ensure correct fitment and performance, always verify the part number on your existing control board or consult your boiler’s service documentation before installation, as control boards are model-specific and must align with the boiler’s control architecture.

Designed for direct replacement, the 87483004170 PCB connects seamlessly with the boiler’s existing wiring harness and control interface without modification. Installing this genuine Worcester Bosch control board restores dependable electrical control and responsiveness, making it an ideal choice for professional engineers carrying out repair or maintenance on compatible boilers.