What does the Worcester Bosch Greenstar Si F67 fault code mean?
The F67 fault code on the Worcester Bosch Greenstar Si indicates a problem with the boiler’s internal diagnostics system. This typically suggests that the boiler is unable to communicate effectively with its components, which may lead to operational issues.
Common Causes
- Faulty PCB: The printed circuit board (PCB) may be malfunctioning, causing incorrect readings and diagnostics failures.
- Wiring Issues: Damaged or loose wiring connections can disrupt communication between components, leading to the F67 fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and potential safety hazards. Attempting to fix it yourself may void the warranty or cause further damage.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F67 fault code is around £200 to £300, primarily due to the potential need for a new PCB and professional labour costs.