What does the Worcester Bosch Greenstar Si F30 fault code mean?
The F30 fault code on the Worcester Bosch Greenstar Si indicates a fault with the printed circuit board (PCB). This issue can disrupt the boiler’s operation, leading to heating and hot water failures.
Common Causes
- Power Supply Issues: Inconsistent or inadequate power supply can cause the PCB to malfunction.
- Component Failure: Internal components on the PCB may fail due to age or manufacturing defects, leading to the F30 error.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any issues related to the PCB, as handling electrical components can be dangerous and may void warranties.
Estimated Repair Cost (2026 UK Prices)
The estimated cost for replacing the PCB on a Worcester Bosch Greenstar Si is around £300 to £400. This includes parts and labour, reflecting the complexity of the repair and the need for a qualified technician.